HANDS FREE SOLUTION - Keep your phone in your running belt or armband and utilize the multi-functional controller to listen to music answer phone calls and change tracks conveniently. Never worry that the long tangled wires will get in your way when you are on the move.</br>ERGONOMIC DESIGN -Masentek Earphones are lightweight so they are super comfy. With the ergonomic design and eco-friendly material they conform to the contour of your ears and stay comfortably and securely in place even during the most vigorous exercise.</br>SWEAT PROOF & RELIABLE - Whether you are at the gym or doing outdoor sports like running or biking Masentek Earphones can withstand your most rigorous activities. Its sweat proof and splash proof features keep you move without compromising the functionality.</br>PAIR WITH ANY 2 DEVICES - Masentek Earphones can pair with 2 different Bluetooth devices simultaneously. It will double the options for answering calls & enjoying music from 2 different devices at the same time.</br></br>Product Description</br></br><b>Note</b>:Any problem/question please kindly contact us firstly. Our Customer Support Team will get back to you within 24 hours.<br><br><b>Technical Details</b>:<br>- Model: H61<br>- Noise reduction: CVC6.0<br>- Bluetooth version: Bluetooth V4.1+EDR<br>- Chip: CSR8615<br>- Bluetooth Profiles: A2DP?? AVRCP?? HSP?? HFP<br>- Operation Range: Up to 33 feet<br>- Talk Time: Up to 5 hours<br>- Play Time: Up to 4.5 hours<br>- Standby Time: Up to 160 hours<br>- Charge Time: 1 hour<br><br><b>How to Pair</b>:<br>1.Before using the headset?? please use the USB charging cable to charge it first.<br>2.Press the power button of the headset for 8 seconds or longer until you see the blue-red light blinking alternately or hear a beep?? it will automatically