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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 7 min read · Independent comparison
• BASN Bmaster Triple Drivers — biggest strength: a true triple-driver setup (two dynamic drivers plus one balanced armature) with MMCX detachable cables, so you can replace or upgrade the cable yourself and run the included inline mic cable or the silver-plated OFC cable.
• BASN Bmaster Triple Drivers — biggest trade-off: it's a 3.5 mm analog pair. There's no DAC and no USB-C, so your phone or laptop has to supply the signal and the quality.
• Hidizs ST2 — biggest strength: a USB-C monitor with the ESS ES9218AC Pro DAC built into the plug, decoding up to 32-bit/384kHz PCM and DSD128, with no battery to manage and no Bluetooth in the chain.
• Hidizs ST2 — biggest trade-off: it's USB-C only. No 3.5 mm jack, so older gear without USB-C audio support simply won't drive it.
• Who each pick is for: BASN for musicians, audio engineers and anyone with a 3.5 mm source who wants a replaceable cable; Hidizs for phone, tablet and PC users who want one cable, one plug and studio-grade decoding with zero setup.
The Bmaster is built around a hybrid driver array: two dynamic drivers handling the low end and one balanced armature covering the detail work. The result, per the specs, is a sound that stays balanced top to bottom — full low frequencies, a clear midrange and a treble that doesn't turn harsh. Impedance is listed at 34±1 Ω (the product info also lists 16 ohm, so treat the impedance spec as loose), and the frequency range runs 20 Hz to 20,000 Hz. That's a classic monitor tuning: not a bass cannon, not a bright sparkly consumer bud, but something that keeps its composure when you push it.
I'd point a musician, a live sound engineer, or anyone with a headphone amp or audio interface at this one. The 6.3 mm adapter is a giveaway that BASN expects you to plug into real gear. Skip it if your only source is a modern phone with no headphone jack — you'd need a dongle, and at that point the whole analog advantage gets muddier.
Hidizs ST2: Who It's For
The ST2 is a different animal entirely. It's a USB-C in-ear monitor with the ESS ES9218AC Pro DAC chip living inside the connector. That means the digital-to-analog conversion happens at the plug, not inside your phone or laptop, and per the specs it handles 32-bit/384kHz PCM, DSD128 and 8X MQA unfolding. The numbers Hidizs quotes — 122 dB dynamic range and 0.0012% THD — describe a very quiet, very clean signal path. It also drives 70mW×2, which is meaningful for a bus-powered USB-C device.
The drivers are dual 10 mm titanium units with a PU+PEEK composite diaphragm and a dual magnetic circuit, covering 20 Hz to 40 kHz. Sensitivity is listed at 118 dB and impedance at 32 Ω. The shell is German-imported Byer resin with an oval earpiece shape and silicone tips, and the cable is oxygen-free copper with a braided textile wrap. There's a sample-rate indicator that lights up differently depending on the audio stream, an HD mic that converts voice to 24-bit/48 kHz, and touch volume controls. It works across Windows, macOS, iOS, Android and HarmonyOS over USB-C.
The practical pitch is simple: no battery, no pairing, no latency. Plug it into a phone or laptop and it works. That makes it great for long sessions — eight-hour workdays, gaming marathons, podcasts, streaming. It comes with three pairs of silicone tips, a pouch, a USB-C to USB-A adapter and a warranty card.
Side-by-Side: Which Should You Choose?
• Best for stage and studio monitoring on analog gear → BASN Bmaster Triple Drivers. The 3.5 mm jack, 6.3 mm adapter and earhook cable are built for it.
• Best for phone and laptop listening with no dongle → Hidizs ST2. The USB-C plug carries its own DAC.
• Best for cable longevity and repairability → BASN Bmaster Triple Drivers. MMCX detachable cables mean you replace the cable, not the earphones.
• Best for high-resolution source files → Hidizs ST2. 32-bit/384kHz PCM, DSD128 and 8X MQA unfolding beat anything a passive analog pair can claim.
• Best for marathon sessions with no charging → Hidizs ST2. USB-C power means unlimited playtime, no battery to top up.
• Best for swapping between a mic cable and a pure audio cable → BASN Bmaster Triple Drivers. Two cables are included and both are swappable.
• Best for gaming latency → Hidizs ST2. Wired USB-C with a built-in DAC removes the Bluetooth delay problem entirely.
• Best for a sealed, isolating fit with tip options → BASN Bmaster Triple Drivers. Nine total pairs of tips across foam and silicone give more fit tuning.
In my opinion, the Hidizs ST2 is the one I'd buy for most people. The built-in ESS DAC, the USB-C plug-and-play, the lack of battery and the 20 Hz–40 kHz range make it the easier, more modern pick for a phone or laptop. But if you're a musician or engineer plugging into a mixer or interface, I'd take the BASN Bmaster Triple Drivers — the triple-driver tuning, the sound isolation and the MMCX detachable cables are exactly what a working monitor needs. Decide based on your source, not the spec sheet bragging rights. Check the current price on Amazon for both before you commit.
If your headphones are wireless, iOS shows battery in the Control Center or in the Bluetooth settings next to the device. Neither product here needs that check — the BASN Bmaster Triple Drivers and the Hidizs ST2 are both wired, so they draw no battery of their own. The Hidizs does pull a little power from your phone over USB-C to run its DAC chip.
Wired headphones don't have a battery to check. The BASN Bmaster Triple Drivers run passively off your 3.5 mm source, and the Hidizs ST2 runs off USB-C bus power. The only "battery" involved is the one in the phone or laptop you plug into.
Start with the basics: confirm the connector matches your device. The BASN uses a 3.5 mm jack and includes a 6.3 mm adapter for amps and interfaces; the Hidizs uses USB-C and ships with a USB-C to USB-A adapter for computers. Then check the fit — both rely on passive sound isolation, so a proper tip seal is what actually blocks outside noise.
Both include a microphone. The BASN ships with a dedicated adjustable inline mic cable with call and volume control, so you can swap to the plain OFC cable when you don't need it. The Hidizs has an HD mic built into its cable and converts voice to 24-bit/48 kHz — test it in a voice recorder or call app to confirm your device is routing audio correctly.
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