【HD Stereo Sound】 - Bluetooth 4.2 headset, music/call audio quality, built-in HD microphone, adopt CSR chip and CVC6.0 noise cancelling technology. You can enjoy the amazing sound quality with superb deep bass and crystal clear treble, also connects up to 33 ft/10m away in open space. Can be connected with two devices Simultaneously
【Comfort and Convenience】 - Lightweight without wearable pleasure, the headphones come with 3 pairs of ear caps for maximum comfort while do soprts. The portable designed headphone built with large capacity battery, which provides up to 15 hours of continuous music time and 500 hours of standby with a single charge
【Flexible Neckband Design】 - Around-the-Neck wearing design with perfect Body-Contoured fit. Made of environmental ABS+PC material, light and soft to wear comfortably, perfect for long time wearing no matter in outdoor activities or in office
【Retractable Feature】 - The auto retractable earbuds allows you to pull the retractable wire to the length you want and press the button can store the earbuds wire automatically. Premium quality, portable and convenient to use
【Voice Prompt & Vibration Alert】 - When there's coming call, this Bluetooth headphones will remind you with vibration. you won't miss any phone call, when you are doing exercises or even in a noisy place, you can talk with microphone on your headphones