Description: Very suitable for your mobile phone, can solve the problem of mobile phone suddenly without electricity for you. Ii is the best choice for back-up power. Type: Li-Ion Model:N910X Output Voltage: 3.85V Charging voltage limit: 4.4V Capacity: 3220mAh 12.4Wh Packing Size:L200*D100*W12mm Compatible with: Samsung Galaxy Note 4 N910C\/U\/K\/S Package Included: 1 x 3220mAh Battery for Samsung Galaxy Note 4 N910C\/U\/K\/S 1 x Waterproof bag 1 x Instruction manual