Lots 10pcs 3.7V 30mAh Lipo Polymer Rechargeable Battery For Earphone Pen 301012

30mAh 301012 031012. office devices: Notebook, PDA, portable electrograph, portable printer. 2.1 Rated Capacity 30mAh. Capacity: 30mAh. 1 communication: cellular phone, web phone, interphone, Bluetooth earphone.

eBay