SANWA SUPPLY Loudspeaker Speaker Hands-free MM-SPAMP9

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. [Maximum practical output]: 14W [Frequency characteristics]: 90Hz~18kHz [Speaker format]: Sealed full-range speaker [Speaker unit size]: 4 inches (diameter approx. 91.5 mm) [Load impedance]: 4Ω [Microphone input]: 3.5mm microphone jack [External input]: 3.5mm stereo mini jack (LINE IN), USB memory, microSD card (32G or less) [Power supply]: Built-in lithium ion battery (7.0V 2000mA) [Charging method]: AC adapter DC5V/1000mA Please check the Sanwa Supply website for product support and details.