Features: The wireless speaker chargers provides strong protect. Good anti-interference performance and high reliability. High working efficiency. Low operating temperature and long service life. 100-240V input ranges, meeting global usage standards. Good insulation performance and high dielectric strength.With short circuit, over load, overvoltage protect functions. Specifications: Material:ABS Color:Black Input:100-240V Option Type:Speaker Power Adapter with US-Plug Speaker Power Adapter with EU-Plug Speaker Power Adapter with UK-Plug Suitable for Harman Onyx Studio7 :HKOS7BLKAM Onyx Studio 6 HKOS6BLKAM HKOSBLUAM HKOS6 HKOS6GKYAM HKONYXS2BLKJK Onyx Studio 5:HKOS5BLKAM HKOS5BLUAM HKOS5GRYAM Onyx Studio 4:HKOS4BLKAM HKOS4BLUAM HKOS4WHTAM HKOS4BLKBSG HKOS4BLKEU HKOS4WHTBSG HKOS4BLUBSG Onyx Studio 3:ONYXSTUDIO3R HKONYXSTUDIO3BLKUS ONYXSTUDIO3REDG1 ONYXSTUDIO3K ONYXSTUDIO3BLUEG1 HKONYXSTUDIO3BLKAM Onyx Studio 2:ONYXSTUDIO2BLKUS Onyx Studio 1:HKONYXSTUDIOG1 HKONYXSTUDIOJN Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xPower Adapter