Bluetooth version: Jerry 6973D4 V5.0 Bluetooth profiles supported: HFP, HSP A2DP AVRCP

Speaker specification: 10mm, 16 ohm brass horn

Built-in battery: 3.7V/280mAh + ordinary protection board

Shutdown standby time: more than 6 months

Music time: about 40 hours (maximum volume)

Call time: about 40 hours

Charging time: about 90 minutes

Charging input interface: Micro interface

Main functions: hang up the call/reject the call/answer the call/long press for 3 seconds to switch on/off/last number redial/music play/pause/volume up/volume down. Default English, support Chinese-English switching. Accessories: charging cable 1PCS + transparent ear hook: 1PCS

Material: ABS+Silicone earmuffs

Body size: 75*18*30.5mm

Weight: About 13.5 g