K68 New Collar style Bluetooth Earphones MP3 Earphones Wireless Telescopic Cable Single Ear Card Insertion Recording Earphones

Chip: JL7018Bluetooth version: V 5.3Transmission distance: 10mCharging voltage: DC5VCharging time: 20 minutesTalk time: 12 hoursMusic duration: 12 hoursStandby time: 6 monthsBattery capacity: 140 mA h