Wireless Neckband Bluetooth Headphones Monstercube MC930 Stereo Noise Cancelling Earbuds with Mic for Running / Exercise ADVANCED BLUETOOTH TECHNOLOGY: Latest Bluetooth CSR 8635 technology ensures Hi-Fi Stereo Sound quality and a strong signal. Easy, fast pairing with smartphones, tablets and other Bluetooth enabled music devices. HD CLEAR SOUND: CSR High Fidelity Sound Quality, ensures Hi-Fi Stereo and High Fidelity Sound Quality. Features CVC 6.0 noise cancelling technology, filters out background noise to guarantee high quality sound and also provides clearer voice calls. LONG-LASTING BATTERY: Powerful, rechargeable, battery offers up to 8 hours music time, 10 hours talk time and 16 days standby time; enjoy your music on the go with less charging. DESIGNED FOR SPORTS: Lightweight, neckband style, durable, silicone headphones; flexible to ensure a 100% comfortable fit. Very convenient Magnetic Absorption Earplugs. EASY TO USE: Controlling the volume, switching tracks, changing songs, making phone calls, these are all done very simply via the neckband controller.