For Fitbit Charge 4 / 3 / 3 SE Universal Aluminum Alloy Charger Holder with Chip Protection, Support Fast Charging, For Fitbit Charge 4

1. Material: aluminum alloy
2. Output short circuit protection, overvoltage and overload filter protection
3. High working efficiency and fast charging speed
4. Charging method: Probe interface
5. Good quality and long service life
6. Suitable for Fitbit Charge 4/4 SE / 3 / 3E