Astell & Kern AK300 AK320 AK380 Portable Audio Player Battery - 3.7V 4000mAh
A high quality replacement battery for the Astell & Kern AK300, AK320, AK380.
Actual measured dimensions (mm): D6.3 x W43.5 x L76.1
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.