Harman Kardon Onyx Studio 9 Wireless Bluetooth Speaker up to 8 hours of operation Equipped with USB terminal for power supply Equipped with auto

We offer a wide variety of products, and the following precautions apply to some of them. Please note that they are listed for all products. 【Voltage Compatibility】Designed for Japanese voltage (90-110V). Using with a different voltage may cause malfunction. 【Plug Type】Japanese plugs (A or B type). Use a conversion adapter if needed. 【Transformers & Adapters】Transformers adjust voltage; adapters only change plug shape. Using an adapter without a transformer may damage the product. 【Liability】We are not responsible for damages caused by improper use, such as using the product without a transformer. Only new products purchased from authorized retailers have a 1-year manufacturer's warranty and are certified with the Technical Conformity Mark. Frequency band:: 2402MHz ~ 2480MHz Outstanding sound performance with a unique "2-way, 3-channel" configuration Equipped with unique acoustic technology "Constant Sound Field" technology, which allows you to create an immersive experience that envelops the entire room with just one unit. Slim design with a depth of just 13cm, iconic design with a timeless circle motif. The unique automatic sound quality tuning function automatically adjusts the sound according to the room layout and installation location.