1Bluetooth 0 provides an unbreakable connection (wireless range of 33 ft/10m). 2Compatible with most Bluetoothenabled devices, such as mobile phones, laptops, tablets, TVs, computers, etc. 3The 40mm/6in large aperture driver provides HIFI audio and powerful bass. 4Dual microphones, highdefinition noise reduction calls, comfortable to wear, retractable and foldable, card playback, with FM radio, support 5MM socket, ergonomic design, very suitable for your head. 5Memory foam protein ear cushions can completely cover your ears and reduce pressure for maximum comfort. 610m distance transmission, stable signal, stable transmission, low power consumption, compatible with mobile phones/compatible notebook computers/Bluetooth devices, etc. 7Compatible with 99% for Android, for IOS, for Windows, for Symbian mobile phones with Bluetooth function, the active noise reduction headset uses advanced technology. 8It can block background noise, and you can immerse yourself in the music world even in busy streets/offices/buses/trains/cars, etc. The noise cancellation function works well in wireless mode. 9Noise-cancelling heavy bass stereo music foldable earphones, bluetooth sports earphones, wireless bluetooth stereo earphones, for music/games/computers, support memory card with microphone cable.