[Product Information]

[Bluetooth 4.1+aptx]: Bluetooth V4.1+CSR technology delivers astonishing acoustics. Experience realistic stereo digital quality sound on the go， enjoy natural sound and beats with the deep base you crave with the freedom that this wireless headphone offers with up to 33ft Bluetooth range. It can connect up to two devices simultaneously and allows for automatic connection after being successfully the first time.
[Secure Fit Ear-Hook Design]: These Noise-Cancelling Earbuds include S/M/L ear tips and special ear-hook design to ensure a comfortable and secure fit for everyone. Ergonomically designed flexible ear hooks with gel flex silicone ear tips to ensure headphones stay comfortably firm in place to guarantee fatigue free ears and tangle free comfort， you will never worry about your earbuds falling off in the gym or during a workout again.
[Music & Calls Control]: Wireless Bluetooth Earbuds automatically switch between music and calls. You can control your music and calls easily via the buttons of your Bluetooth headset. The built-in microphone enables you to take calls hands-free while listening to music.
[Sweat Resistant]: Adopt Nano waterproof and sweatproof and special waterproof coating， protection from inside to outside， is immune to all directions of splash water can prevent the erosion of sweat more， make you sweat it at the same time can have a more free music experience.
[Long-Lasting Usage & Lightweight Design]: Bluetooth 4.1 CSR technology brings to long time working. With 1-2 hours recharge can be used for up to 8 hours playing time， 250 hours standby time. It has a super Lightweight Design， and has a net weight of only 0.6 ounces; you will feel nothing when you are at the gym and working out. Perfect for Running， Jogging， Hiking， Biking， Gym etc.