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Small black rectangular Bluetooth adapter with HD display and 3.5mm AUX cable

Syntech B101-BK Bluetooth 5.4 Transmitter Receiver Car Electronics Accessory

SKU CH-JD37-FZEFF MPN B101-BK

Bluetooth 5.4 transmitter and receiver with 3.5 mm AUX input and output, 100 ms latency, 49 ft range, HD display, and dual pairing for two headphones

  • TypeB101-BK
  • Labor12-month warranty
  • Parts12-month warranty
  • Adjustable Low PassLow Latency
  • Adjustable Parametric Bass EQLow Latency
  • CableMale-to-Male
  • Transmitter and receiver modes cover flights, TV and car audio
  • Bluetooth 5.4 chip delivers 100 ms latency for movies and games
  • 49 ft wireless range lets you move freely at home or gym
  • HD display shows pairing status and battery level at a glance
  • 12 month parts and labour warranty included

Versatile 2-in-1 Audio Adapter

The Syntech B101-BK works as both a Bluetooth transmitter and receiver, letting you send audio from in-flight entertainment systems, TVs or gym equipment to wireless headphones, or stream music from a phone to a car stereo or home speakers. A dual 3.5 mm AUX cable is included for broad compatibility with wired audio ports. It suits travellers, drivers and home listeners who want cable-free flexibility.

Bluetooth 5.4 with Low Latency

Advanced Bluetooth 5.4 delivers a stable connection up to 49 ft and latency as low as 100 ms in SBC/AAC mode, keeping video and audio in sync for movies and games. The link remains reliable through walls and across rooms, and the adapter falls back to Bluetooth 5.3, 5.2, 5.0, 4.2, 4.0, 3.0 and 2.0, though latency may rise on older versions. An HD display shows pairing status and mode at a glance.

Replaces Wired Dongles and Single-Mode Adapters

This unit removes the need for separate transmitter and receiver dongles, consolidating both roles in one pocket-sized device powered by an internal battery. The jump is worthwhile when you regularly switch between sending audio to headphones and receiving audio from a phone, especially on planes, in cars or at the gym. It is not for users who need aptX or LDAC codec support, multi-point connections beyond two headphones, or a permanent powered installation without recharging.

Highlights

  • Transmitter and receiver modes cover flights, TV and car audio
  • Bluetooth 5.4 chip delivers 100 ms latency for movies and games
  • 49 ft wireless range lets you move freely at home or gym
  • HD display shows pairing status and battery level at a glance
  • 12 month parts and labour warranty included

Specifications

BrandSyntech
ModelB101-BK
TypeB101-BK
Labor12-month warranty
Parts12-month warranty
Adjustable Low PassLow Latency
Adjustable Parametric Bass EQLow Latency
CableMale-to-Male
ChannelsStereo
ColorBlack
Drilling Requiredwired
Frequency Blockednot_applicable
Hardware Includedfalse, true
Head Unit Size2.8956 cm x 9.0932 cm x 11.9888 cm
Inputs3.5mm AUX
Max Recommended Power Handlingwireless headphones, AirPods, in-flight entertainment systems, TVs, car stereos, home speakers, gym equipment, wireless headsets, speakers, Bluetooth-enabled devices, Low Latency
Number of Links to Amplifier2
Outputs3.5mm AUX, Bluetooth
PowerBattery Powered
RangeBluetooth, bluetooth, AUX
SensitivityLow Latency
Test DescriptionAlways follow battery handling precautions. Do not expose the device to extreme temperatures or humidity. This device may interfere with other wireless devices if not used properly.
THDStereo, Low Latency

Questions about this item

How do I install the Syntech B101-BK and which pairing mode should I choose first?

Plug the 3.5mm AUX cable into the source, slide the switch to TX for transmitter or RX for receiver, then press the pairing button; TX-first pairs headphones to the adapter, RX-first pairs the adapter to a speaker or car stereo.

What maintenance or replacement will the Syntech B101-BK need later?

The internal battery is not user-replaceable; when it no longer holds a charge the whole unit must be replaced, and the 3.5mm AUX cable can be swapped if it becomes worn or damaged.

What limit appears first during sustained use of the Syntech B101-BK?

Battery life runs out before the 49ft Bluetooth 5.4 range or the 100ms low-latency performance degrades, so extended sessions are limited by the internal cell's capacity.

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