1). Unique Magnetic Design: much more convenient to carry when not in use, no tangled cables2). IPX Level 4 waterproof and sweatproof specially designed for sports use.  3). Ultra lightweight, 55g only, Ergonomic design optimized for ultimate wearing comfort to match your active lifestyle and for activities like running, jogging, cycling. 4).  Bluetooth V4.0 and UK CSR Chipset, t stable signal transmission, powerful audio decoding, operating distance up to 10 meters. Superior Compatibility; works with all the Bluetooth enabled electronic devices. 5).  10mm Titanium Alloy Vibration Diaphragm speaker drive units, Support APT-X, toned by professional tune team, HiFi super bass and stereo sound Quality. 6).  Supports two connected devices simultaneously and allows to automatically connecting after paired successfully. 7).  180mAh polymer lithium battery, playback time/ talk time up to 8 hours.8).  Built-in high definition concealed microphone, support handsfree function so you can answer incoming phone calls. 9).  CVC6.0 noise cancelling technology delivers clear and natural sound, like face-to-face conversations.Features:Advanced CVC 6.0 noisecancelling technology: H7 has a high-quality microphone for chat/video calls, and the noise cancelling functionBorn for sports: H7 is great for most sports activities such as jogging, running, cycling, hiking, gymUnique magnetic earbuds design: The earbuds have magnets in the back that allow them to stick together when not in useSweat-proof and solid battery life: H7 is designed to protect against sweat & moisture with Bluetooth v4.1 compatibility for ultra-long battery lifeComes with surprising breathable mesh bag: Soft mesh material helps your wet h7 air dry to keep from damagingSpecifications:Product Name: H7 neck-mounted Bluetooth headsetBluetooth version: V4..0+EDRWearing method: neck hangingInput voltage: DC5VBluetooth version: V4.0Transmission distance: 10mWorking voltage: 3.7VOutput power: 90mw (maximum)Frequency response: 20Hz-2000KHz distortion: ?1%Signal to noise ratio: 90~110dbCall duration: 7hMusic playback: 7hStandby time: 240hCharging time: about 3hBattery: 1 pcsMaterial: lithium batteryBattery: 150maHWeight: 55gPackage Included:1* Bluetooth headset1*USB charging cable1* instruction manual