1. Frequency range: 2400MHz-2483MHz 2. Working distance: 15m 3. Battery type: rechargeable lithium battery 4. Battery capacity: 300MAh 5. Battery voltage: 3.5V-4.2V 6. Signal-to-noise ratio: 90db 7. Use time: sustainable use 5-6h 8. Charging time: 1-2h 9. Small and light, comfortable to wear on the head, and the ear hooks are stable. 10. 360-degree wireless transmission, high sensitivity.
