Asahi Denki Kasei Handheld speaker that allows you to hear TV sound (ANS-501)

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. A personal speaker that allows you to enjoy TV sound at your fingertips without disturbing those around you. You can adjust the volume to a level that is easy to listen to without raising the TV volume. This product is a TV speaker that connects to your TV's earphone jack and allows you to enjoy TV sound at your fingertips. [Power source used] 3 AA alkaline batteries (sold separately) or AC adapter (sold separately) When using an AC adapter, please use our separately sold ANS-403AD. When using a commercially available product, please use one with DC5V±10%/600mA, compatible plug shape: outer diameter 5.5mm, inner diameter 2.1mm, length 10mm or more. Switching type AC adapters may produce a lot of noise. Please note that if you use an output voltage that exceeds DC5V, such as DC6V, it will be damaged. [Battery life] Approximately 100 hours (when outputting a volume of approximately 70 dB at volume, using alkaline batteries made by a domestic manufacturer)