【Fully Compatiblity】Hisewen HK-OS4 LI11B001F Battery Compatible with Harman Kardon Onyx Studio 4, Onyx Studio 3, Onyx Studio 2, Onyx Studio 1 Wireless Bluetooth Speaker. Battery Part No.:LI11B001F 【Battery Specification】 High Capacity: 3500mAh, Voltage: 3.7V. Rechargeable Li-ion battery. Sizes: 2.68*0.67Inch 【Screwdriver Tool】This Onyx studio 4 battery comes with screwdriver tool, you can replace the old battery easily. Hisewen is committed to providing thoughtful and attentive service to every customer. 【Multiple Protection】Harman kardon replacement battery built in overcurrent, overcharge, overvoltage, overheating, shortcircuit protections, ensure battery safety. 【What You Get】1 x Replacement LI11B001F Battery, 1 x Installation Tool Kits. Hisewen battery is a good replacement battery for Harman Kardon Onyx Studio 4/3/2/1 Hisewen 3500mAh Replacement LI11B001F Battery for Harman Kardon Onyx Studio 4/3/2/1 Wireless Bluetooth Speaker.

Specification:
-Hisewen HK-OS4 replacement Battery compatible with Harman Kardon Onyx Studio 4/3/2/1 Wireless Bluetooth Speaker.
-Voltage: 3.7V, capacity: 3500mAh.Rechargeable Li-ion battery.
-harman kardon onyx studio 4 battery come with screwdriver tool, you can replace the old battery easily. Hisewen is committed to providing thoughtful and attentive service to every customer.
-Harman kardon replacement battery built in overcurrent, overcharge, overvoltage, overheating, shortcircuit protections, ensure battery safety.

Battery Specification:
Voltage:3.7V,
Capacity:3500mAh.

Package Includes:
1Pack HK-OS4 replacement battery,
1 set screwdriver tool.

Warranty:
30 day money back, 12-month quality guarantee and lifetime technical support.
If you have any suggestions or are unhappy with the product, please do not hesitate to contact our online customer service for help!