If you want wired, closed-back headphones for focused listening and studio-style audio, choose AKG Pro Audio K371; if you need open-ear wireless headphones for calls while staying aware of your surroundings, choose Rulbovs E12. For calls, the E12 has the more explicitly call-focused design, while the K371 is the stronger pick for listening in isolation. Which one fits depends on whether awareness or sound isolation matters more in your daily routine.
AKG Pro Audio K371 vs Rulbovs E12 at a Glance
• Rulbovs E12 strength: Open-ear Bluetooth design, built-in microphone, and up to 10 hours of battery life; trade-off: no sound-isolation control and no headphone jack.
• AKG connectivity: Detachable mini-XLR connection with 3.5 mm and 6.3 mm compatibility through the included cables and adapter.
• Rulbovs extras: Camera, built-in storage, voice features, and IP65 dust- and water-resistance rating; trade-off: those extras make it a very different kind of headset from a studio headphone.
• Choose the K371 for desk listening, editing, or a quieter, more enclosed fit; choose the E12 for calls, workouts, and situations where you want to hear the environment.
The K371 is a wired, closed-back, over-ear headphone built around a 50 mm dynamic driver. Its listed frequency range is 5 Hz to 40 kHz, and its 32-ohm impedance and 114 dB sensitivity are specified to work with a broad range of sound sources. AKG describes its sound target as designed for accurate, neutral listening, making the K371 the more considered option for editing, podcast work, and checking music details.
Its foldable headband, replaceable ear pads, and mini-XLR connector point toward a design intended for regular use and easier storage. The listed weight is 255 grams. It also comes with 3 m coiled and straight cables, a 1.2 m straight cable, a 3.5 mm-to-6.3 mm adapter, and a protective pouch, so it can connect to different gear without relying on Bluetooth.
I’d choose the K371 if I wanted a conventional headphone fit with sound isolation and a wired connection for a desk or studio setup. I’d skip it if I needed to move freely without a cable, take calls with an included microphone, or remain especially aware of nearby traffic and conversation. The available specifications do not identify a built-in microphone or wireless calling feature.
The E12 uses an open-ear, air-conduction design with curved ear hooks, leaving the ear canal uncovered. It connects wirelessly over Bluetooth 6.0 and has 16 mm dynamic drivers. That makes it a practical match for someone who wants audio without fully shutting out nearby sounds, such as during a walk, workout, or household task.
For calls, the E12 has a built-in microphone described as noise cancelling, with the product information claiming it reduces ambient noise by up to 95%. That is a manufacturer-stated figure, not a guarantee of call performance in every setting. The headset is also listed with up to 10 hours of battery life and a 1.5-hour charging time. Its IP65 rating is specified for dust and water resistance.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
There are unusual extras here: an 8 MP camera with image stabilization, 1080p recording, clips of up to 10 minutes, and 8 GB of built-in storage. AI functions are also described, including translation, interpretation, meeting summaries, and object recognition. I’d consider the E12 for wireless calls and active use, but skip it if I wanted a closed-back fit, stated sound isolation, or a straightforward wired studio headphone.
• Best for calls while staying aware of your surroundings → Rulbovs E12. Its open-ear fit and built-in microphone suit calls where hearing the environment matters.
• Best for focused, enclosed listening → AKG Pro Audio K371. Its closed-back over-ear design provides sound isolation, unlike the E12’s open-ear approach.
• Best for a wired desk or studio setup → AKG Pro Audio K371. It includes mini-XLR-to-3.5 mm cabling and a 6.3 mm adapter for different audio equipment.
• Best for cable-free movement → Rulbovs E12. It uses Bluetooth 6.0 and has no wired headphone connection listed.
• Best for workouts or outdoor tasks → Rulbovs E12. The open-ear hooks, IP65 rating, and up-to-10-hour battery life are more aligned with active use.
• Best for portability without charging → AKG Pro Audio K371. It is wired, foldable, and includes a pouch; it does not depend on a battery for playback.
• Best for camera and AI extras → Rulbovs E12. The listed camera, storage, and AI features are distinct from the K371’s audio-focused design.
• Best for a conventional headset feel → AKG Pro Audio K371. Its over-ear cups contrast with the E12’s hooks that sit around the outer ear.
In my opinion, I’d buy the Rulbovs E12 if my main need were calls, especially while walking or working out, because it combines a built-in microphone, wireless Bluetooth, and an open-ear fit. For calls, that is the more directly equipped choice on paper.
I’d choose the AKG K371 instead for editing, focused listening, and a wired studio setup. Its sound-isolating, closed-back design is the clearer fit when hearing the room is a distraction.
The E12 is the more call-oriented option in the listed features: it has Bluetooth and a built-in microphone described as noise cancelling. The K371 is wired, and its provided specifications do not list a microphone.
The E12’s wireless connection and built-in microphone make it the more plausible of these two for calls while gaming. The available details do not specify gaming-specific features, platform compatibility, or microphone performance beyond the stated noise-reduction claim.
They are open-ear headphones with hooks, not a design specifically identified for sleeping. The product details do not describe sleep-focused comfort or use, so I wouldn’t assume they are suitable for wearing in bed.
Between these two, the E12 is the clearer choice because its open-ear design leaves the ear canal uncovered. The K371’s closed-back construction is intended to provide sound isolation, which is useful for focus but less suited to staying tuned in to nearby sounds.
finall
If you want wired, closed-back headphones for focused listening and studio-style audio, choose AKG Pro Audio K371; if you need open-ear wireless headphones for calls while staying aware of your surroundings, choose Rulbovs E12. For calls, the E12 has the more explicitly call-focused design, while the K371 is the stronger pick for listening in isolation. The deciding question is whether awareness or isolation matters more in your daily routine.
• AKG Pro Audio K371 strength: Closed-back, over-ear design and a listed 5 Hz–40 kHz frequency range; trade-off: wired listening, with no wireless connection.
• Rulbovs E12 strength: Open-ear Bluetooth design, built-in microphone, and up to 10 hours of battery life; trade-off: no headphone jack or listed noise-control function.
• AKG connectivity: A mini-XLR connection with included cables for 3.5 mm and 6.3 mm audio equipment.
• Rulbovs extras: Camera, built-in storage, AI features, and an IP65 dust- and water-resistance rating; trade-off: a very different kind of headset from a studio headphone.
• Choose the K371 for desk listening, editing, or a more enclosed fit; choose the E12 for calls, workouts, and situations where hearing your surroundings matters.
The K371 is a wired, closed-back, over-ear headphone built around a 50 mm dynamic driver. Its listed frequency range is 5 Hz to 40 kHz, with 32-ohm impedance and 114 dB sensitivity. AKG describes its sound target as designed for accurate, neutral listening, which makes it the more considered choice for editing, podcast work, and checking details in music.
Its foldable headband, replaceable ear pads, and mini-XLR connector point to a design intended for regular use and easier storage. The listed weight is 255 grams. Included cables are 3 m coiled and straight options and a 1.2 m straight cable, along with a 3.5 mm-to-6.3 mm adapter and protective pouch.
I’d choose the K371 for a desk or studio setup where a wired connection and sound isolation are useful. I’d skip it if I wanted to move freely without a cable, make calls with an included microphone, or remain especially aware of nearby conversation and traffic. The listed specifications do not identify a built-in microphone or wireless calling feature.
The E12 uses an open-ear, air-conduction design with curved ear hooks, leaving the ear canal uncovered. It connects wirelessly over Bluetooth 6.0 and has 16 mm dynamic drivers. That makes it a plausible fit for someone who wants audio while still hearing nearby sounds, such as during a walk, workout, or household task.
For calls, the E12 has a built-in microphone described as noise cancelling. The product information claims it reduces ambient noise by up to 95%; that is a stated specification, not a guarantee of call quality in every setting. The headset is also listed with up to 10 hours of battery life and a 1.5-hour charging time. Its IP65 rating is specified for dust and water resistance.
The extras are unusual for a headset: an 8 MP camera with image stabilization, 1080p recording, clips up to 10 minutes, and 8 GB of built-in storage. The listed AI functions include translation, interpretation, meeting summaries, and object recognition. I’d consider the E12 for wireless calls and active use, but skip it if I wanted a closed-back fit, listed sound isolation, or a straightforward wired studio headphone.
Side-by-Side: Which Should You Choose?
• Best for calls while staying aware of your surroundings → Rulbovs E12. Its open-ear fit and built-in microphone suit calls where hearing the environment matters.
• Best for focused, enclosed listening → AKG Pro Audio K371. Its closed-back over-ear design offers sound isolation; the E12’s open-ear design does not.
• Best for cable-free movement → Rulbovs E12. It uses Bluetooth 6.0 and has no wired headphone connection listed.
• Best for workouts or outdoor tasks → Rulbovs E12. Its open-ear hooks, IP65 rating, and up-to-10-hour battery life align more closely with active use.
• Best for listening without charging → AKG Pro Audio K371. It is wired and foldable, so it does not depend on a battery for playback.
• Best for camera and AI extras → Rulbovs E12. The camera, storage, and AI functions are distinct from the K371’s audio-focused design.
• Best for a conventional over-ear fit → AKG Pro Audio K371. Its ear cups differ from the E12’s hooks, which sit around the outer ear.
In my opinion, I’d buy the Rulbovs E12 if my main need were calls, especially while walking or working out. Its built-in microphone, wireless connection, and open-ear fit make it the more directly equipped option for calls on paper.
I’d choose the AKG K371 instead for editing, focused listening, and a wired studio setup. Its closed-back design is the clearer fit when sound isolation matters more than hearing the room.
The E12 is the more call-oriented option in the listed features: it has Bluetooth and a built-in microphone described as noise cancelling. The K371 is wired, and its specifications do not list a microphone.
The E12’s wireless connection and built-in microphone make it the more plausible choice of these two for calls while gaming. The product details do not specify gaming features, platform compatibility, or microphone performance beyond the stated noise-reduction claim.
They are open-ear headphones with hooks, not a design specifically identified for sleeping. The product details do not describe sleep-focused comfort or use, so I wouldn’t assume they are suitable for wearing in bed.
Between these two, the E12 is the clearer choice because its open-ear design leaves the ear canal uncovered. The K371’s closed-back construction is designed to provide sound isolation, which can help with focus but is less suited to hearing nearby sounds.
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