Specifications:

• Use: MP3 / MP4 Player
• Type: Battery Pack
• Standard Capacity: 4050mAh
• Rechargeable: Yes
• Package: No
• Nominal Voltage: 3.7V/3.8V
• Model Number: for iRiver Astell & Kern AK300 AK320 AK380 Player
• If in stock and track code: Yes
• Compatible for model: for iRiver Astell & Kern AK300 AK320 AK380 Player
• Brand Name: anjing
• Battery Type: 100% Li-po Rechargeable Accumulator Pack Replacement