Avantree Sweatproof Bluetooth Sports Headphones with Mic, Wireless Earbuds for Running, No Hanging Wire, IPX4 Outer Ear Headset for Cycling Gym Workout, AS30 IDEAL FOR SPORTS: Run, jog, cycle or work out without troublesome wires with this lightweight (24g), perspiration-proof Bluetooth headsets neat fit behind-the-head design. SECURE& SNUG FIT: Enjoy both low- and high-intensity sports without stopping to pop your headphones back in, thanks to these headphones ergonomic design and the firm but flexible steel memory wire headband. HI-FI STEREO SOUND: Experience your favorite tunes at their best and hear phone calls with perfect sound with the dynamic sound quality offered by this Bluetooth headset. FLOURESCENT TRIM: Be seen in low-light conditions and stay safe on the go with this Bluetooth sports headsets reflective silver trim. LONGER LISTENING: Up to 8 hours of music time and 9 hours talk time. Whether you're out for a quick jog or running a marathon, the headset won't run out of juice. Easy to charge and only need two and a half hours for a full cycle.