ELECOM Wireless Single Earplug with Microphone Power Volume Button support that can listen to 2 communication devices at the same Blue Headset,

------------------------------------------------------------------------------------------------------------------ 【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 Bluetooth(R) wireless headset that supports HD Voice and Qualcomm cVc for high-quality call sound. Bluetooth (R) wireless headset compatible with HD Voice, Qualcomm CVC, which achieves high quality calling sound quality. The compact size makes it perfect for carrying around, making it useful for work on the go. Supports HD Voice, which takes full advantage of VoLTE call quality, allowing you to clearly hear the other party's voice. Compatible with Qualcomm cVc (Clear Voice Capture) using DSP, delivering clear and low-noise voice to the other party, realizing high-quality calls.