1. Bluetooth version: 4.0 2. Battery capacity: 20mAh 3. Charging input: 5V, 20mA 4. Product material: ABS+silicone 5. Charging time: 2 hours 6. Life time: 24 hours 7. Effective range: 10 meters 8. Product size: 2 x 2 x 2.3cm 9. Product weight: about 4g 10. Product function: control APP short video page flip browsing and like functions 11. Matters needing attention: iOS system mobile phone needs to turn on Settings-Accessibility-Touch-Assistive Touch before it can be used normally
