1. Sliding blade design, compatible with various specifications of batteries 2. LED lights show charging status 3. Environmentally friendly engineering plastic material, high temperature resistance, safe heat dissipation 4. Intelligent compatibility, 4-slot independent control, no influence on each other 5. Input: 220V 6. Output: 1.2V 250mA 7. Rechargeable battery: NI-MH/NI-CD AAA/AA 8. Size: about 10.2 x 6.9 x 2.9cm 9. Weight: about 120g 10. Description: only the charger, excluding other items such as batteries in the picture