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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want featherweight open-ear earbuds built for running, cycling and all-day awareness, choose PPBP Open Ear Headphones; if you need a helmet-mounted intercom that lets two riders talk on the road, choose THETREE X2.
• PPBP Open Ear Headphones — biggest strength: a genuinely tiny 6.1 g per earbud with an open-ear hook design, quad-speaker audio and IPX6 sweat resistance, so it disappears on your head during workouts.
• PPBP Open Ear Headphones — biggest trade-off: it's an everyday consumer earbud, not a communication system. No intercom, no helmet mount, and the open design deliberately lets outside sound in.
• THETREE X2 — biggest strength: a purpose-built motorcycle intercom with 2-way rider-to-rider talk over roughly 800–1000 m, CVC/DSP noise reduction and an IP67 sealed body.
• THETREE X2 — biggest trade-off: it only makes sense inside a helmet. There's no way to wear it as normal earbuds, and music sharing and intercom are separate modes you switch between.
• Choose PPBP Open Ear Headphones if you're a runner, cyclist or gym-goer who wants light, situational-aware audio.
• Choose THETREE X2 if you ride a motorcycle and want to talk to a passenger or a second rider while wearing a helmet.
The PPBP Open Ear Headphones are built around one idea: get audio to your ears without blocking them. Each earbud weighs just 6.1 grams, which is lighter than a standard key, and the ergonomic ear hooks hold the driver above the ear canal rather than inside it. The brand says this cuts skin irritation by about 5% versus in-ear models and is comfortable for 10+ hours of continuous use. Whether or not that exact percentage matters to you, the logic is sound: nothing is jammed into your ear, so there's no pressure build-up and no seal to break.
The audio side is more ambitious than most open-ear designs. PPBP uses a quad-speaker layout — dual drivers per earbud — with 15 mm dynamic drivers and a dedicated headphone amplifier chip, and the primary drivers are angled toward the ear canal. That's a real design choice, not marketing filler: open-ear buds usually struggle with bass because they don't seal, and a dedicated amp plus larger drivers is the usual way brands try to compensate. Bluetooth is listed as 5.4 in the title and 6.1 in the feature copy, with claimed 4x faster transmission and stable connectivity. Battery is rated at 40 hours total with the charging case, which is the kind of figure that covers a week of commutes or a long trip without hunting for a cable.
Where it fits: running, cycling, gym work, outdoor chores, and any situation where hearing traffic, a coach or a colleague matters. The IPX6 rating handles sweat, rain and splashes, and the brand says it's tested for 100+ hours of active use. There's also a single-button control for calls and music, plus an AI translation mode mentioned in the description. The color is black and the package includes a user manual.
THETREE X2: Who It's For
The THETREE X2 is a different species of product entirely. It's a motorcycle helmet Bluetooth headset, and everything about it is shaped by that job. The core feature is the 2-way intercom: two X2 units can talk to each other over roughly 800–1000 m in open areas, and the connection is full-duplex, so both riders can speak at the same time instead of taking turns. For a rider with a passenger, or two friends on a road trip, that's the whole point of the device.
It runs on a Qualcomm Bluetooth 5.4 chip, which is the same generation PPBP claims, and the spec sheet lists audio latency at 1 ms — the kind of figure you care about when you're hearing GPS prompts or a voice call at speed. The speakers are 40 mm × 9 mm, deliberately slim so they fit into most helmet speaker pockets with less pressure against your ears. That detail matters more than it sounds: thick speakers in a tight helmet get painful after an hour.
Noise handling is where the X2 earns its place. It combines CVC and DSP noise reduction to cut wind and engine roar, and the product info also lists environmental and passive noise cancellation. The body is IP67, so rain, road spray and dust aren't a concern, and the 700 mAh battery is rated at up to 18 hours of intercom use, up to 30 hours of music playback and 300 hours of standby, with a full Type-C recharge in about two hours. You can connect two phones at once, and the kit includes both button and boom microphones so it works with full-face, flip-up and half helmets — though fit varies with helmet design and padding.
Controls are glove-friendly: large push buttons plus a rotary dial for volume, calls, music and intercom, and one-touch access to your phone's voice assistant. It weighs 3.2 ounces and ships with the intercom unit, a clamp mount, speakers, a USB-C cable and a wind-proof microphone in a hard-shell case.
Side-by-Side: Which Should You Choose?
• Best for running and cycling → PPBP Open Ear Headphones. 6.1 g per bud, ear hooks that stay put, IPX6 against sweat and rain.
• Best for motorcycle communication → THETREE X2. 2-way full-duplex intercom at roughly 800–1000 m in open areas is something PPBP simply doesn't do.
• Best for situational awareness → PPBP Open Ear Headphones. The open-ear design is intentionally unsealed so you hear traffic and surroundings.
• Best for wind and engine noise → THETREE X2. CVC and DSP noise reduction plus passive isolation target exactly that problem.
• Best for long battery life away from a charger → PPBP Open Ear Headphones on total runtime, at 40 hours with the case; THETREE X2 wins on single-charge endurance for its own job, with 300 hours of standby.
• Best waterproofing → THETREE X2. IP67 beats IPX6, which matters when you're riding in real rain rather than sweating.
• Best for helmet fit → THETREE X2. Slim 40 mm speakers, a clamp mount and both mic types are designed around helmets; PPBP isn't.
• Best for a passenger or riding buddy → THETREE X2, without question. Music sharing between two units is also supported, though you switch between that and intercom mode.
• Best for gym, commuting on foot, or outdoor work → PPBP Open Ear Headphones. It's the one you'd actually wear all day.
In my opinion, these two shouldn't really be competing — they solve different problems, and the right answer depends entirely on whether you're wearing a helmet. If I were buying for myself and I ride a motorcycle, I'd take the THETREE X2: the 2-way intercom, IP67 sealing and CVC/DSP noise reduction are things no open-ear earbud can replicate, and the 18-hour intercom rating covers a long day out. If I were buying for running, cycling or the gym, I'd take the PPBP Open Ear Headphones without hesitating — 6.1 g per bud, a 40-hour total battery figure and an open design that keeps me aware of traffic. Buy the X2 for the road. Buy the PPBP for everything else.
FAQ
Not better — different. The X2 is a helmet intercom with rider-to-rider talk over roughly 800–1000 m. The PPBP is a 6.1 g open-ear earbud for workouts. Neither replaces the other.
You could wear them under a helmet in theory, but they have no intercom and no helmet mount, and the open design doesn't fight wind noise. The X2 is the product actually designed for that.
The PPBP lists active noise cancellation in its controls, while the X2 lists environmental and passive noise cancellation plus CVC and DSP reduction aimed at wind and engine noise. For calls at speed, the X2's approach is the more relevant one.
PPBP claims 40 hours total with the charging case. The X2 claims up to 18 hours of intercom, 30 hours of music and 300 hours of standby, with a two-hour Type-C charge. Different jobs, different numbers — and you should check the current price on Amazon before deciding, since that's the one thing specs can't tell you.
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