Specification: Brand WAVEFUN Model Flex Pro Bluetooth Version Bluetooth 5.0 Processor QCC3003 Style Flex neckband design Battery times Music /talking time Up to 9 hours Charging time Around 40mins Noise Reduction Noise Reduction version DSP & CVC8.0 Battery Capacity Battery capacity per pcs 120mAh Battery quantity 1 pcs Whole Battery capacity 120mAh Buttons Functions Switch songs Press Volume or Volume- for 2 sec Reject a call Press MFB for 1 sec Adjust volume Press Volume or Volume – Last number redial Press MFB twice time Others Built in Mic yes Operating Distance 5 – 10 meters
