Bluetooth 5.0 technology - Provides fast and stable pairing with any iOS and Android smart phones, tablets, laptops, MP3 players from up to 33' Away. Clear Sound- built-in HD microphone with advanced CVC6.0 offers crystal clear audio and natural sound, allowing you to enjoy high quality music and clear phone calls wherever. Hands-free for calling - This Bluetooth headset With mic Supports Siri and voice assistants. Easily mute/unmute with the touch of a button. Voice alerts battery level, connection status, mute/unmute status, and even announce the phone number of caller except the caller name. Easy-to-reach buttons let you enjoy real hands-free. Comfortable & convenient - designed to fit either ear, The retractable ear hook and Flip-boom arm swivels and rotates for a conmfortable fit. It is lightweight and comfortable enough to be worn for hours at a time. Ultimate comfort ear gels are available in 3 different sizes to provide a snug, tailored fit. IPX7 make your life convenient. Great battery life- With up to 8-10 hours of continuous calls and up to 7.5 days in standby mode, This Bluetooth earpiece lets you make reliable wireless calls throughout the day on a single 1.5 hours quick charge.