3.7V 120mAh LiPo 1S Polymer Battery: GPS Earphone MP3 Bluetooth - 401322
Built-in protection circuit (PCM) prevents over charging/discharging.
Actual measured dimensions (mm): D3.6 x W13.9 x L21.2
Shipped fast and secure from the UK (global shipping available).
If you have any questions at all, or if you don't see the battery you require, please ask.