Hanging neck type 5.2 Bluetooth Headset Ultra Long Battery Life Sports Wireless In-ear Headset Feature: The high-strength titanium alloy metal frame is to compression and breaking without deformation and comfortable to wear. Ergonomic in-ear headphones design to specifically the contours of your ears and a 10-meter working distance our sport headphones will let you enjoy music when running gym sports & exercise and other activities. Blueteeth 5.2 technology easy and fast pairing with smartphones tablets and other Bluetooth enabled music devices and providing stereo sound for compatible devices. 99% mobile phone tablet Blueteeth-enabled laptop and other digital devices on the market. Large capacity charging cabin design effectively solve the problem of easy to carry. Specifications: Support A2DP AVRCP Handsfree. Blueteeth Version: V5.2+EDR Sensitivity: 92dB Working Range: 10-15 metes Rated power: 3W Frequency Response: 20HZ-20KHz Talk time: 40hours Distortion: ≤0.5% Battery Voltage/Capacity: 280MAH Battery Charging Voltage:5V±0.5V Battery Charge Time: 2-3 hours Package List: 1 x wireless Headphone 1 x Charging Cable