Adds Bluetooth to anything with a 3.5mm socket - car stereo, hi-fi, gym TV or old speakers. Switches between transmit and receive, low-latency aptX, 15 hours per charge.

Key specs • Modes: transmitter and receiver, switch on the side • Codec: aptX Low Latency, lip-sync accurate for TV • Battery: 15 hours per charge • Connections: 3.5mm and optical • Pairs: two headphones at once in transmit mode

In the box Adapter, 3.5mm cable, optical cable, USB-C cable

UK notes Adds Bluetooth to a car stereo, a gym treadmill or an old hi-fi. The low-latency codec is what stops the delay on TV audio.