Rechargeable LiPo Battery 552040 3.7V 420mAh
1.Model: 552040
2.Voltage: 3.7V
3.Capacity: 420mAh
4.Battery Type: Li-polymer Battery
5.Plug: Lead
6.Weight: 9.2g
7.Demension:5.5*20*40mm
Application: Bluetooth headphones and other digital products
Remark;please contact me if you need any other kind