Roman S301 Dual-channel A2DP V2.1+EDR Wireless Stereo Bluetooth Headset with Microphone Silver we highly recommend is a necessary accessory especially you always talk with your friends a long time. With the superb sound quality， it gives your high-clarity and dulcet audio experience and allows you to have clear sound transmission without ambient noise and to keep incoming communication private. Perfect curve， discerning taste， simple but elegant， sophisticated and durable! This 126g Bluetooth headset is lightweight and stylish， which is more convenient for your digital life! Come and get one!                                    Features             New and high quality<br> It delivers high performance and remarkable sound for you<br> The practical headset with super clear and good sound effects brings you the best listening experience<br> Small， lightweight and stylish<br> Comfortable to wear， it allows you to have clear sound transmission without ambient noise and to keep incoming communication private<br> Advanced technology in echo cancellation &amp; noise reduction ensures exceptional sound quality<br> The microphone can function exactly as same as the original earphone<br>                                                            Specifications             Dimensions     (3 x 1.5 x 2)cm / (1.18 x 0.59 x 0.79)"    <br> Weight     126 g / 4.44 oz    <br> Color     Silver    <br> Distance     10 M    <br> Talking Time     4-5 Hours    <br> Standby Time     180 Hours    <br> Frequency     2.4G    <br> Version     V2.1 + EDR     <br>                                                             Package Includes            1 x Bluetooth Headset<br>1 x Charger<br>4 x Earplug<br>2 x Ear Hook<br>1 x Manual<br>