ES47 Shelly wireless BT headset Brand New

1. ES47 Shelly TWS wireless headset, BT V5.0, 40mAh headset battery for 4.5 hours of calls and music, 120 hours of standby, with 300mAh charging case 1. BT v.5.0, chip: JL AC6976.2. Battery capacity: charging case 300mAh, headset 40mAh.3. Charging time: 1.5 hours for charging case, 1 hour for headset.4. Calls / music time: 4.5 hours.5. Standby time: 120 hours.6. Sizes: 60*45*29mm. Weight: 40g.7. Support leader-follower switch.