1. Material: aluminum alloy 2. Installation method: rearview mirror installation 3. Mounting aperture: 8-10mm 4. Power supply mode: charging treasure power supply 5. Charging capacity: 3500MA 6. Product accessories: hex wrench / thick washer / thin washer 7. Suitable for 4-7 inch mobile phone installation and use 8. Product features: fixed mobile phone, navigation, and power supply for mobile phones 9. Can be installed on bicycle, battery car, motorcycle, electric tricycle, off-road vehicle, ATV, etc. 10. Mainly for bicycle design, because the bicycle has no battery, the mobile phone holder comes with a charging treasure design, which solves the drawback that no battery can not be charged, so that the bicycle is full of more possibilities and fun. 11. Size: 8.5x6.9x11.1cm 12. Net weight: 238G
