JBL Metal Super Bass 770 - Wireless Earphones

Features: Supports Pairing Bluetooth Devices To Play Music Such As Mobile phone , Handsfree Call It Will Prompt The Phone Number When You Have A Coming Call, Its More Convenient Smart Power Off - If Not Connected Wireless Mode, It Will Turn Off Automatically After 8 Minutes The Built In Rechargeable Lithium Battery, Environmental Protection Specifications : Wireless Version : 4.2 Supports Profiles : A2DP, AVRCP, HFP, HSP Transmitting Power : Class 2 Frequency Range : 2.402-2.480 GHz Sensivitity : 105dB +- 3dB Rechargeable Lithium Battery : 70mAh Talking Time : 3 Hours Music Playing Time : 3 Hours Charge Time : < 2 Hours