Specification: Model: SYLLABLE S101 Earphones Size: as in the detail picture below Color: Black Chip: QCC3020 chip Bluetooth Version: BT V5.0 Voice Command: No Operate Range: 10m headset Battery Capacity: 50mAh Charger case battery capacity: 500mah Charge Time: about 1.5hours Music Time: about 10 hours70% Volume) Applicable products:Mobile Phones, Pad and PC Package Contents: 1* SYLLABLES101Earphones 1* USB Cable 4* extra EarBuds 1* User Guide