・Allow TV connect to a Bluetooth-compatible headset or computer connect to a Bluetooth-compatible speaker for wireless enjoyment ・V4.2 Bluetooth-compatible version works better ・Connect 3.5mm headphone jack to make your headset become wireless Bluetooth-compatible headphone ・Drive-free quick pairing,more convenient to use ・Extensive compatibility,faster and more stable signal transmission ・20m effective transmission distance ・Portable design with mini size Specification: ・Bluetooth-compatible version 4.2+EDR ・Distance:15-20m ・Music time:about 6 hours ・Talk time:about 5 hours ・Standby time:about 60 hours ・Battery capacity:90mAh ・Support agreement:Headset/handsfree/A2DP /AVRCP Package included: ・1 x 3.5mm AUX-in Wireless Bluetooth-compatible 4.2 Audio Receiver Adapter ・Accessories only,devices not included