1. Material: ABS, electronic components, metal
2. Applicable system: iOS8.0 or Android 4.4 and above
3. Wireless connection: Bluetooth version 4.0
4. Battery parameters: 3.7V/40mAh lithium ion polymer battery
5. Charging time: about 90 minutes
6. Seamless large rounded corners, comfortable grip without scratching
7. Magnetic feel, automatic alignment
8. Racing structure, flexible and light rotation
9. Screw connection, stable and durable
