MiiRii HV900 Wireless Bluetooth Stereo Headset Universal Vibration Neck Bluetooth Style Earphone Headphone for Cellphones and Tablet (Black) Built with CSR Bluetooth 4.0 chipset guarantees solid performances and connection stability within 10 meters operational range Lightweight memory flex neckband design with magnetic earphone holders allows maximum freedom on the run. Perfect Bluetooth headset solution for different occasions Ultra durable built-in rechargeable lithium battery provides up to 8 hours music time, 15 hours talk time and up to 15 days standby time Enhanced stereo sound quality with A2DP profile support, experience high quality music and calls at affordable price For stereo music and phone calls with built in microphone. Music controls include play, pause, next track and previous track