Topnisus Professional Wireless Bluetooth Headset with Mic for Trucker, Customer Services Staff Telephone Operator Hands Free with Answer End Refuse Call Redial Function (TN-M6) MULTIPOINT SUPPORT - 2 connections simultaneously; balanced and light weight TOUCH BUTTON SUPPORT - Call answer /end, redial, volume control and voice dialing HANDSFREE & WIRELESS - Hands free for trucker, customer service staff, etc. UNIVERSAL USAGE - Compatible with most Bluetooth mobile phones that with Bluetooth function DESIGNED FOR CALLING  Please note this single ear headphone is not for listening to music, will be better for professional usage, Bluetooth V3.0,CSR