hoco. ES73 Dynastic neck-mounted BT earphones - black

1. Bluetooth 5.4 chip: JL AC7003 2. Battery capacity: 400mAh; Charging time: 2 hours 3. Use time: 60 hours; Standby time: 130 hours 4. Size: The total length of the earphone is 90cm; Weight: 49g 5. Support Chinese and English prompt sounds: double click the multi-function key in the unpaired state