Bluetooth 5.3 Headset 9D HIFI Stereo In Ear Earphones Mini TWS Noise Cancelling Earphones Hand-Free Calling Headphones

Product Specification: 1.Bluetooth Version:V5.3 2.Bluetooth Profile:A2DP,AVRCP,HFP, HSP 3.Working voltage:3.1V~4.2V 4.Charging voltage:5V-1A 5.Speaker specification：8mm*2 6.Frequency response:20Hz~20kHz 7.Microphone sensitivity：-40Db 8.lmpedance:32Ω 9.Battery capacity of the headset: 50mAh 10.Battery capacity of the storage box:2000mAh 11.Transmission distance:About 10M 12.Call time:About 6 h 13.Play time:About 5 h 14.Waterprof:IPX7 15.Charging time of headset:1.5h 16.Charging time of the Charging box:2h

Products include 2 * Bluetooth headsets 1 * Charging box 1 * Charging cable 4 * Ear cap