headset Bluetooth V5.0 one ear, super long call earphones, HD Calls, strong noise canceling, built-in microphone Designed for hands-free calling,

【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.

Powerful Noise Cancellation: The Bluetooth headset's high-performance noise cancellation eliminates distracting noises, allowing you to experience noise-free calls even in noisy places. HD Voice for Crisp, Clear Calls: Enjoy the clearest calls with HD voice and MICOOL's dual microphone technology.HD audio automatically adjusts the volume to suit your surroundings, so you won't be interrupted by background noise anywhere.Dual microphone technology delivers excellent call quality to the person you are calling. Supports long-term calls: Built-in 200mha large-capacity battery, takes about 2 hours to charge, super long-time calls, long-time standby, IOS system battery level display, and communication distance of about 10 to 15 meters (when there are no obstacles).It can be controlled by voice and can be enjoyed with high quality sound.The charging problem has been thoroughly resolved and the battery can be charged securely. Ergonomic design: Bluetooth-enabled mono headset speaker fits in your ear using ear gels and ear hooks for all-day comfort. Bluetooth V5.0: Uses Bluetooth5.0 technology to ensure faster and stable connection. Bluetooth earpieces can easily be paired with any two Bluetooth devices at the same time. Roaming range up to 30 feet from paired Bluetooth devices. Meet all your calling needs.