Description: Charges two batteries simultaneous. With built-in USB charging cable plus two expansion ports (Android Type C interface). Short-circuit, over-voltage and over-current protection, and the imitation fire material charger shell safety of charging process. Dual channel design is convenient and practical, perfect for outdoor shooting, ensuring there is is enough battery to support your photography work. Compatible battery model: NP-F970 F770 F570 FM50 FM70 FM90 QM71D/91D PAN VBD1 /VBD2 J-V-C V607U 617U etc. Specification: Material: Plastic Size: Approx. 11.8 × 6.5 × 2.3cm/4.6 × 2.5 × 0.9" Package Includes: 1 Piece Dual Channel Battery Charger Note: Please allow 1~3mm errors due to manual measurement. Thanks for your understanding