Description: The Transmitter make everything enabled, allow you to enjoy the fun of wireless connection, and it can be paired with two receivers (like 2 headphones) simultaneously. Turn on the switch, A/B blue light flashes, after the connection is successful, the blue light is always on, and the working status can be seen at a glance. This audio adapter makes your TVs and other devices which enabled to stream audio to your headphones. Low Latency for high-fidelity clear stereo sound, lag-free content streaming in transmitter mode, bringing you a richer and deeper sound experience. Plug and play. With a built-in 300mAh rechargeable battery, It only takes 1-2 hours to be fully charged and works for 6 hours. Equipped with 3.5mm AUX audio cable. Specification: Material: Plastic Electronic components Version: V5.0 Working Frequency 2.402G -2.480G Built-in Battery: 300MAh Charging Voltage: DC 5V Use Time: 6 Hours Protocol: 5.0 EDR, A2DP, HSP, AVRCP compatible Distance: 10m (Open Area) Output Connection Mode: AUX 3.5mm Color: Black Size Chart: 63.8×46.9mm/2.51×1.85inch Package Includes: 1 Piece Audio Transmitter 1 Piece 3.5mm Aux Cable 1 Piece USB Charging Cable 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!