Audio Receiver Wireless Adapter has one key control and Built-in batteries plug and play. It has professional ear chip with Bluetooth 4.2 transmission technology.
Specifications:
Material: Plastic
Channels: 2 (2.0)
Audio Output: Dual
Interface Type: 3.5mm
97mAh built-in battery
Maximum continuous playing time: 4 hours
Working distance: 10 meters
Wireless connection: Bluetooth version 4.2
Input parameters: 5V1A
Implementation of the standard: Q / WMSX007-2017
Compatible with external headphones: support 3-segment 3.5mm plug stereo headphones; support 4-segment 3.5mm plug GB and American standard phone headset