<b>Note: </b> <br> 1.Make sure the battery of the glasses has sufficient power, Otherwise it will not work properly.<br> 2.Please don’t let the glasses too far from the phone, distance≤7 meters. <br> 3.Read the use manual carefully and use it accordance with the method of use.<br><br> <b>Features:</b><br> Support both headset and hands-free profiles, calling voice and Reporting phone number function when calls coming<br> Bluetooth4.1 Music sunglasses ,can listen music,Bluetooth 4.1,<br> Support iPhone iPad iPod Samsung HTC Sony Smart Phone PC Tablet<br> Auto switch to phone talking mode when making and receiving calls, Support Mp3 can listen music,With Previous/Next Song control, Volume Up/Down control<br> Made of polarized lenses , it has the function of anti-rays, no glare and good eye health care. Hi-Fi earphones built directly on to the frame, and can be adjusted 270 degree for comfortable fit.<br><br> <b>Parameter:</b><br> Transmission range: 7 meters<br> Continuous talking time: 3-5 hours<br> Low cost and power consumption<br> High-sensitivity RF chip embedded for transmission<br> Low-battery monitoring<br> Can be paired with 8 cell phones simultaneously<br> Comply with Bluetooth protocol v4.1 single stack play mode<br><br> <b>Package Details: </b><br> 1 x Bluetooth Sunglasses<br> 1 x Mini USB Cable<br> 1 x Instruction Manual<br> 1 x Glasses Case<br> 1 x Cleaning Cloth<br> 3 x Sun lens(yellow, brown, clear) <br> 1 x Screwdriver<br> 2 x Screws<br><br> <b>Note: </b> If the protective film is plasted on the lens, please take off the protective film before using.