Luxmo Black Wireless Bluetooth Version 4.0+EDR HV-800 Neckband Sport Stereo Universal Headset Headphone for Smartphone This Bluetooth headset can make you enjoy the freedom of wireless listening and hands-free talk. Can connect with two Bluetooth devices (e.g. cell phone and music system) at the same time Unique neck-strap design for easy carrying Shipped from USA, Up to 10 hours play time; Up to 10 hours talk time; Working range: 10 Meters;Up to 360 hours standby time; Less than 2.5 hours charging time Noise reduction & Echo cancellation 9mm high fidelity audio earplugs, life like clear sound. Speaking key, Volum control keys, the music key and Up/down song keys.