- Bluetooth 5.4; Chip: JL JL7006F4-2. Battery capacity: 300mAh; Charging time: 1.5 hours-3. Usage time: 32 hours-4. Material: ABS+steel fork+PU leather; Size: 190 * 155 * 77mm; Weight: 180g-5. Support Chinese and English prompt sounds: double-click the power button when not paired