Photive PH-EB100 Sweat-Proof Wireless Bluetooth 4.1 Stereo Earbuds with Built in Microphone (Black) Wireless Bluetooth 4.0 with APTX - wirelessly connect with your smartphone, tablet, laptop, or any other Bluetooth-enabled device. They stream crystal-clear audio for a range of up to 30 feet for 6 hours on a single battery charge. Premium Sound- Designed with Powerful Neodymium drivers that can handle the subtle variations of your favorite music, with crisp treble notes and deep bass for the best possible sound In-Line Controls allow you to easily to take calls, control track functions and adjust the volume. Sweat-resistant design- Protected against sweat and moisture damage.An Innovative Nano-coating is applied during the manufacturing process resulting in invisible liquid repellent Layer Active Lock Ear Stabilizers Provide a secure, comfortable fit during your workout.