RETRACT BeeperII A2DP Headset with Bluetooth wireless technology VIBRATION ALERT CONNECTION LOSE ALERT AVOID LOSING YOUR MOBILE INCOMING CALL ALERT AVOID MISSING YOUR CALLS MULTI-POINT CONNECTION RETRACTABLEWIRE PRESS HERE TO RETRACT BLACK NOISE CANCELLATION TWO WEARING STYLE BY CLIP ON CLOTHING BY NECK STRAP SILVER BLACK SPECIFICATION OF RETRACT BEEPER II Bluetooth Version: 5.3 Bluetooth Profile: HSP, HFP, A2DP, AVRCP Charging Time: 1.5- hours Talk Time: 7.5 hours Music Time: 10 hours Battery Capacity: 100mAh Operation range: 10m User Manual