Bluetooth Compatible 5.0 Audio Aux Adapter 2 in 1 Audio Transmitter 3.5mm Jack Aux Dongle for Wireless Connection for Car Music Audio Equipment Feature: 1. 4 Hours Battery Life: This bluetooth compatible audio transmitter is suitable for version 5.0 and has 4 hours of battery life. The sound quality is not compromised. Supports hands-free calls; It is plug-and-play and has an AUX port. 2. Bluetooth Compatible Transmission and Reception Modes:TX: converts audio into a Bluetooth-compatible signal via cable and transmits it to a Bluetooth-compatible device for output; RX: Receives the Bluetooth signal and transmits it to audio via Bluetooth connection via cable. 3. Audio Transmission: Connect this 5.0 Bluetooth compatible receiver to your TV's 3.5mm audio jack and transmit audio to your headphones via Bluetooth. So you don't have to worry about disturbing your family while watching a movie at night. 4. Wireless Playback: Speakers, ktoacut