Airsspu Dt55 Bluetooth4.1 Wireless Sport Headphones Extended Battery Life Headset with Microphone High-fidelity Stereo Sound In-ear Noise Cancelling Sweatproof Earbuds for Iphone and Android(green) Taken the unique noodle line structure design, is not easy to knot, with the function of magnetic adsorption, the movement design. Taken the high fidelity, CD quality effect,Voice prompt:Incoming calls report U type high sensitivity, the omnidirectional microphone is designed, dialogue clear, no reply Taken the effective distance: barrier-free 10-15 meters.Music time:about 10h,Talking time:about 10h Standby time:about 200h MultipointConnect with 2 Phones and use at the same time