- Color classification:
- Bluetooth white pluggable U disk dual charge 2 3000 batteries, Bluetooth white plug U disk dual charge 2 3000 batteries, Bluetooth white pluggable U disk single charge 1 3000 battery, Bluetooth red pluggable U disk dual charge 2 3000 batteries , Bluetooth red plug-in U disk dual-charged 2 3000 batteries, Bluetooth red pluggable U disk single-charged 1 3000 battery