Wireless Bluetooth Audio Receiver AUX 2-in-1 This Bluetooth receiver allows you to pair your wireless headphones with your TV, stereo or CD player without Bluetooth. The receiver easily plugs into the AUX port of your stereo, TV, or computer so you can listen to music in your headphones. performance: Technology: BT4.2, A2DP, AVRCP (receiver mode only) Working range: up to 10m/33ft (without any obstructions) Charging time: 2 hours Continuous use time: 6 hours (receiving mode) / 5 hours (transmitting mode) Battery type: lithium polymer (200mAh) Phone size: 44 x 44 x 12mm Technology: BT4.2, A2DP, AVRCP (receiver mode only) Working range: up to 10m/33ft (without any obstructions) Charging time: 2 hours Continuous use time: 6 hours (receiving mode) / 5 hours (transmitting mode) Battery type: lithium polymer (200mAh) Phone size: 44 x 44 x 12mm