SBXDIO&reg; BTH220 Bluetooth Stereo Headphone - Supports Wireless Music Streaming and Hands-Free calling Compatible with most Bluetooth enabled music players & A2DP enabled devices such as iPad, iPhone, iPod touch, Android Smart Phones, etc. Bluetooth v2.1 + EDR Class 2. Supports latest version of A2DP 1.2, AVRCP 1.0 and HS/HF Profiles Serves as both a Wireless music headphone and Bluetooth phone headset for hands free calling Comfortable, Lightweight Design with Up to 8 hours of talk time SBX have the USA Trademark protector,you search SBX on USPTO offical website