3.7 volt, capacity of 2800 mAh, rechargeable lithium battery. Suitable for walkie-talkies BF-666S, BF777S, BF888S, BF-88E High capacity circulation function, perfect for replacing your original batteries. Safety protection, effective protection against overcharging, overcharging, overheating, over-current and amplifier, short circuit protection. Box contents: 1x lithium-ion battery
