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Small black rectangular Bluetooth 5.4 adapter with 3.5 mm jack and volume controls

ElecMoga Bluetooth 5.4 Transmitter Receiver 2-in-1 AUX 300mAh 12h 16h

SKU CH-HHM3-6MVFA

Bluetooth 5.4 transmitter and receiver with 12-hour TX and 16-hour RX battery life

  • Tuning rangeBluetooth
  • FM quieting sensitivityBluetooth 5.4
  • FM frequency responseVolume Control, Stereo
  • FM selectivityBluetooth
  • FM stereo separationStereo
  • AM selectivityBattery handling precautions, Avoid extreme temperatures, Po
  • Bluetooth 5.4 with Qualcomm chipset cuts latency for synced audio
  • 2-in-1 TX and RX modes switch between transmitting and receiving
  • Dual 3.5 mm adapters fit any airplane seat jack
  • 300 mAh battery gives 12 h TX or 16 h RX playtime
  • 49 ft range keeps connection stable across the room

ElecMoga Bluetooth 5.4 Audio Adapter

The ElecMoga 2-in-1 Bluetooth 5.4 transmitter and receiver adds wireless audio to any device with a 3.5 mm jack. It serves travellers who want to pair headphones with in-flight entertainment systems, gym equipment or older TVs. It also works in reverse, streaming phone audio to wired speakers or car stereos. The compact design fits in a pocket or carry-on for on-the-go listening.

Passive Cooling and Battery Runtime

The unit has no fan and runs silently during operation. A 300 mAh battery powers up to 12 hours in transmitter mode and 16 hours in receiver mode before needing a recharge. Charging completes in roughly 2 hours from a standard 5 V 500 mA USB source. Low power draw means minimal heat even during extended sessions.

Build Integration and Connectivity

The adapter measures 60 mm by 36 mm by 13.8 mm and weighs 0.132 kg, so it adds negligible bulk to a travel kit. Dual 3.5 mm airplane plug adapters are included for wide seat compatibility. Bluetooth 5.4 supports aptX, aptX LL, aptX HD, AAC and SBC codecs for stable streaming up to 39 ft indoors or 49 ft in open space. It does not suit users who need multi-point pairing beyond two headphones or devices lacking a 3.5 mm audio port.

How it compares

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

Price $18.99
Cheaper than about 70% of the 127 comparable items (median $27.99).

Specifications

Product
Brand nameElecMoga
Model nameElecMoga
Audio & video
FM frequency responseVolume Control, Stereo
Power
Power sourceBattery Powered
Size & build
Product dimensions60 mm × 36 mm × 13.8 mm
Product weight0.132 kg
More details
Tuning rangeBluetooth
FM quieting sensitivityBluetooth 5.4
FM selectivityBluetooth
FM stereo separationStereo
AM selectivityBattery handling precautions, Avoid extreme temperatures, Potential interference with other wireless devices, Stereo
AM stereo separationStereo

Questions about this item

How do I pair two headphones in TX mode?

Plug the transmitter into the 3.5 mm jack, hold the pairing button until the LED flashes twice, put both headphones into pairing mode within range, and the unit links them automatically using Bluetooth 5.4.

What upkeep does the 300 mAh battery need?

Charge fully before first use, then recharge after each 12-hour TX session or 16-hour RX session; the cell accepts 5 V 500 mA input and reaches full capacity in two hours.

When does the wireless range limit appear during continuous use?

The link holds to 39 ft line-of-sight; beyond that distance or through dense obstacles the signal drops first, giving roughly 49 ft only in open air.

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