Specifications:

• Origin: CN(Origin)
• Working Voltage: 3.7V
• Working Temperature: -10℃~50℃
• Use: MP3 / MP4 Player
• Use C: Bluetooth headset, mobile speaker, amplifier,navigation system (GPS),
• Use B: Selfie stick, Bluetooth speaker, toy and other electronic devices.
• Use A: Smart watch, wireless mouse, mobile backup power, MP3&MP4&MP5 players
• Type: Standard Battery
• Rechargeable: YES
• Rechargeable: No
• Package: Yes
• Model Number: 402050
• Model: 402050 Polymer battery
• Dimensions(L*W*H): About 50x20x4mm/1.97x0.79x0.16"
• Charging Voltage: 3.7~4.2V
• Brand Name: YCDC
• Battery Capacity: 420mAh