Bradychan&reg; 2015 Popular Mini Ultra-small S550 4.0 Stereo Bluetooth Headset in-Ear Headphone Earphone Invisable Earbud for iPhone,Samsung,and Other Bluetooth Devices (Black) The Newest S550 bluetooth headset is the updated version of S530 earphone with lightweight and compact portable design.We are committed to creating the most mini bluetooth headsets. Simple and Stylish Support multipoint connections: Can connect two mobile phones at the same time and ready to answer the incoming call of one phone any time Built-in HD and sensitivity microphone. Ideal for in-car calling or working use. Support A2DP , makes you can enjoy clear and natural sound when calling Built-in 50 Mah polymer battery. Up to 4 hours of continuous talk time, 3.5 hours of music time Can be connected with two smartphone at the same time.The wireless range up to 10 meters on open air. The headser will be connect automatically with a phone paired previously