Feature:FEEL THE SILENCE:- Enjoy the Hi-Fi Stereo Sound.JAPANESE ENGINEERING:- Advanced audio development tuned by Aiwa engineers offers great sound for its size.ACTIVE NOISE CANCELLING: HOW IT WORKS:- Turn off the exterior noise with the ANC buttonSpecifications:General: - Active noise cancelling for silencing noisy city trafffic,cabin noise or a busy office- Bluetooth connection.- Mic for calls,smart talk ,work with all iphone models and other smartphones.- Featuring independent on-board controls,manage tracks and receive callsConnection:- Connect wireless or via 3.5 mm audio cable- Bluetooth v 4.0- Bluetooth solution: CSR8635- Bluetooth profile A2DP/AVRCP/HSP/HFP- Operating distance:10MBattery: - Rechargeable battery- Li-ion polymer battery 290 mAh- Music playback and talking time: 18 hours- Charging time: 3 hours