Syntech B101-BK Bluetooth 5.4 Transmitter Receiver Car Electronics Accessory

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.