Key features Waterproof Noise reduction Long battery life Call function Voice control Music support Digital display screen Usage Collar clip Connectivity and range Bluetooth protocol: 5.4 Transmission range: 10 meters Benefits and performance Hands calls with reliable wireless range for everyday use Noise reduction to improve call clarity in busy environments Long battery life reduces the need for frequent recharging Voice control enables convenient, hands operation Music support allows listening without switching devices Digital display screen provides ataglance status information Compatibility Uses Bluetooth 5.4 for wireless connection; compatible with devices that support Bluetooth 5.4 Use scenarios Outdoor activities: clip it to a collar or clothing for calls, music, and voice control during walks, runs, or cycling, with waterproof protection against rain or sweat Commute or office: hands calling and voice commands keep you productive while on the move Travel, gym, and daily routines: quick clipon access on a collar or clothing for easy control of calls, music, and voice features Note Size and material details are not specified in the provided information.