D10 Bluetooth headset parameters:[Bluetooth version] V5.1 (Jerry 6983) magnetic suction charging with charging protection[transmission distance] the outdoor straight-line distance is 12m[battery capacity] pure cobalt battery headset 35mah[battery capacity of charging box] 300mAh[horn] 6mm true copper ring horn[music listening time] 4.5 hours[talk time] about 4 hours[standby time] 120 hours[charging time] 50 minutes[working current] 5-10ma[working voltage] 3.0v-4.2v[distortion] 90dB[corresponding frequency] 20-20KHz[transmit power] 4dbm[horn impedance] 32 [carrier frequency] 2.4GHz[support Bluetooth protocol] SBC, AAC and FHSS do not support aptx audio coding[Specification] color box + manual + charging cable + headset + charging bin[function] single and double ear use + switch songs + adjust volume + call Siri + pause / play + answer phone