This pair of N2 Bluetooth Version V4.1 Headsets with Headphones is especially designed for easy phone talking and enjoying music! The Bluetooth function is of high sensitivity and long sensing distance， transmitting data precisely without distortion. Adopting high-level electronic components it ensures high sound quality. Moreover it is space-saving for easy carrying and storage， very convenient.What are you waiting for? Come to buy a pair of headphonesnow!                                    Features            Universal design for all mobile phones with Bluetooth function， very practicalHigh sensitivity and long sensing distance for convenient useHigh-level electronic components to ensure accurate transmitting without distortionEasy to carryAttached with headphones line， USB cablePerfect sound effect in high quality for wonderful listening experience                                                            Specifications            Bluetooth Version    V4.1    <br>Transmission Power    Class 2    <br>Transmission Distance    393.7" / 10m    <br>Standby Time    180 Hours    <br>Talking Time    5 Hours    <br>Music Playing Time    5 Hours    <br>USB Cable Length    37.4" / 95cm    <br>Weight    0.49oz / 14g    <br>Color    White    <br>Temperature Range    -10℃ - 50℃    <br>Dimensions    (2.24 x 0.55 x 0.28)" / (5.7 x 1.4 x 0.7)cm (L x W x H)    <br>Frequency Range    2.4GHz - 2.48GHz    <br>Frequency Respone    20Hz - 20KHz    <br>Bluetooth Profiles    A2DP， AVRCP， HSP， HFP    <br><br> <br> <br> <br> <br> <br> <br>                                                             Package Includes            1 x Bluetooth Headset(with Headphones Line)1 x USB Cable1 x User Manual6 x Ears Caps