Jazer Upgraded HV-800 HV800 Sport Neckband Bluetooth 4.0 Wireless Stereo Headset Earphone Headphone Earbus with Microphone For iPhone 6 & 6 Plus,Samsung Galaxy S6/S6 Edge/S5/Note 4, HTC One M9/M8,Sony Xperie Z3/Z2,LG G3/G2 and Other Smartphones Apt-x CSR 4.0+EDR A2DP Noise Cancellation (Black) Bluetooth version 4.0 built with well-known CSR chipset guarantees stable connectively and solid performance within 10 meters operational distances Automatically Play/Pause music on incoming calls plus audible pairing assistant keeps you alerted and stay connected Backward compatibility to all previous Bluetooth versions and compatible universally to all Bluetooth enabled mobile devices Up to 7 hours Talk/Music time and 200 hours standby time plus Multipoint Dual Connection Technology