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Small black rectangular Bluetooth 5.4 transmitter receiver with 3.5 mm jack and USB-C port

Audiovox B101 Car HD Radio Bluetooth 5.4 Transmitter Receiver

SKU CH-T5P3-P2F7F

Bluetooth 5.4 transmitter and receiver streams audio from 3.5 mm sources to two headphones with under 40 ms aptX LL latency and runs 24 hours per charge

  • Tuning rangeBluetooth
  • FM selectivityBluetooth, 3.5 mm, bluetooth
  • FM stereo separationStereo
  • AM selectivityThis product meets global quality standards, certified by FC
  • Power sourceBattery Powered
  • Compatible withTVs, computers, airplane entertainment systems, tablets, PCs
  • Bluetooth 5.4 cuts lag under 40 ms with aptX LL
  • 24-hour battery life recharges fully in two hours
  • 72 % more stable connection when sharing two headphones
  • One-key reset clears pairing history in eight seconds
  • 2-in-1 TX/RX streams to headphones or upgrades wired speakers

What the B101 Does

The Audiovox B101 is a 2-in-1 Bluetooth 5.4 transmitter and receiver. In TX mode it streams audio from a 3.5 mm jack to wireless headphones, including dual-prong airline sockets. In RX mode it adds Bluetooth input to wired car stereos or home speakers. A Qualcomm chip enables aptX Low Latency with under 40 ms lag and 72 percent better connection stability. The battery runs for 24 hours and recharges in two hours via USB-C. A dedicated reset button clears pairing history in eight seconds.

Who It Fits and Who It Doesn’t

Travellers who want wireless headphones on seat-back screens, TV viewers who need lip-sync-free late-night listening, and drivers adding Bluetooth to an aux-only stereo will all benefit. Buyers who need real-time monitoring for live music, electronic instruments or karaoke should look elsewhere because latency will be audible. The dual-link mode is limited to SBC encoding, so owners of two aptX headphones lose the low-latency advantage when both are connected.

The Spec That Decides Fit

Bluetooth 5.4 with Qualcomm aptX Low Latency is the single specification that determines whether the B101 meets your needs. If your headphones support aptX LL you get sub-40 ms delay; if they only support SBC you will notice lag, especially in dual-link mode where SBC is mandatory. The adapter has no 2.4 GHz proprietary mode, so it cannot serve instruments that require that transmission type.

How it compares

Measured against everything we stock in HD Radio Tuners & FM Transmitters, at today’s prices. Recalculated every night.

Price $46.99
Pricier than about 64% of the 127 comparable items (median $27.99).

Specifications

Product
Brand nameAudiovox
Model nameB101
Power
Power sourceBattery Powered
Size & build
Product weight0.08 kg
Compatibility
Compatible withTVs, computers, airplane entertainment systems, tablets, PCs, gym equipment, wired speakers, stereos, Bluetooth headphones, AirPods and so on
More details
Tuning rangeBluetooth
FM selectivityBluetooth, 3.5 mm, bluetooth
FM stereo separationStereo

Questions about this item

How long does the built-in battery last before it needs recharging?

The internal battery provides 24 hours of continuous use and recharges fully in 2 hours via USB-C.

What is the audio latency when streaming to wireless headphones?

With aptX Low Latency the delay is under 40 ms; in dual-link mode the codec falls back to SBC so latency may be higher.

Does the unit overheat or make noise during all-day use?

Multi-layer protection guards against overheating and shorts; the device is silent and has no fan.

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