?Here comes this REMAX S15 In-Ear Sweat-proof Neckband Earphone with 30-Degree Rotating Earbud! Made of flexible TPE material， it is non-toxic and harmless. Designed with 30-degree rotating earbud， it can be adjusted to the perfect angle as you like. Its ergonomic treatment on details makes the earphone ultra comfortable to wear for long time without causing any pain. The wired control earphone ensures great stability and performance. You can have one to enjoy music when you are running， walking or doing something. Is that a good choice?                                    Features             Great stereo sound quality and bass response<br> Neck band design and sweat proof function makes sport more enjoyable<br> Built-in microphone function to allow for hassle-free conference calls<br> In-ear style earbud design can better reduce the noise and improve the sound quality<br> With 30-degree rotary earbud for convenient adjustment<br> Good for enjoying music or making phone calls while running， walking or doing sports etc.     <br>                                                            Specifications            Material    TPE     <br>Sensitivity    93÷3dB     <br>Headphone Style    In-Ear     <br>Earphone Jack    3.5 mm    <br>Frequency Response Range    20-20000 Hz    <br>Impedance    32 ┯    <br>Cable Length    120 cm    <br>Color    Black &amp; Orange    <br>Dimensions    (3.54 x 4.33 x 2.95)" / (9 x 11 x 7.5)cm (L x W x H)    <br>Weight    1.41oz / 40g     <br>                                                            Package Includes            1 x REMAX S15 In-Ear Sports Sweat-proof Neckband Earphone<br>3 x Pairs Earpieces<br>1 x Manual<br>