neckband Bluetooth headphones have a lightweight silicone neckband with a titanium alloy steel core to ensure a snug fit on your shoulders and superior shape retention. EXTENDED WIRELESS RANGE - Class 1 Bluetooth for extended range and fewer dropouts Earbuds serves you anytime not matter you are in gym, workout, running and other sweaty exercise The built-in magnet gives this around the neck Bluetooth headphones a convenient storage way to carry around when your earbuds not in use, greatly decreasing the burden in ears. Active noise reduction Bilateral stereo Wireless connection.syi