Highlights Wireless Headsets Crystal Clear Sound 4.5 Hrs Unstoppable Music and 2 Hrs Fully Charged Sweat-proof Specification Dimensions:3.94 in * 5.51 in * 1.18 in Weight:0.1100 lb Available Ship to:United States Details *Features*: **Sport Stylish Headsets*:Adopt advanced noise cancellation technology and high sensitive microphone to deliver HD immersive stereo sound when exercising. 3-size ear tips fit securely in your ear canal and form a general seal for additional passive noise reduction. Ear hooks fit securely and comfortably on your ears when you are workout. In-line remote button achieves multiple functions and achieve hands-free call. **Crystal Clear Sound*:Latest Wireless 4.1version with multi-point technology,simultaneously connect with 2 mobile devices with high quality and high speed signal transmitting,offering impressive crystal clear stereo sound with the 32.8ft maximum distance connectivity. Adopt high-sensitive microphone with CVC6.0 noise cancellation technology to reduce ambient noise,grasp the details of voice and offer crystal clear sound even in a noisy environment. **Multi-use & Easy Operations*:Featured with MFB(Multiple function button) Button and+/-(Volume/Track adjustment) Button,simply and quickly fulfill almost all functions like answer/end a phone,play/pause,pairing,power on/off,remote camera control etc.. Easy operation and brings you much convenience. **4.5 Hrs Unstoppable Music and 2 Hrs Fully Charged*:Inbuilt with 80mAh rechargeable battery and equipped with USB charging cable,4.5Hrs unstoppable HD sound music while only 2 Hrs fully be charged. **Sweat-proof & Portable Case*:Sweat-proof to protect our headsets from corrosion. Designed with a carry case with a charging cable,only weighs .1lbs,portable and always on the go.   *Specifications*:  Product Type: Wireless Sport Earphones  Wireless Version: Wireless4.1  Noise Cancellation: CVC 6.0  Transmission Range: 10m/32.8ft (Without Barriers)  Transmission Frequency: 20-20000Hz  SNR (Signal to Noise Ratio):108dB/mW  Impedance: 16Ω  Music Play /Talk Time: 4.5Hrs  Charging Time: 2Hrs  Charging Input: 5V/200mA  Earphone Battery Capacity: 80mAh  Material: PC Materials  Color: Red & Black  Micro USB Length: 13cm/5.12inches  Neck Cable Length: 60cm/23.62inches  Earbud Diameter: 1cm/0.39inches  Per Earbud Size (With Earhook): 5.2x3x2.5cm/ 2.04inches  Carry Case Size: 8.3x8.3x3.5cm/3.27x3.27x1.38inches  Item Weight: 48g/0.10lbs   *Package Lists*: 1 x Sport Earphones  1 x Micro USB Charging Cable  1 x Pair of Small Ear Tips  1 x Pair of Large Ear Tips  1 x Removable Cable Clip  1 x Carrying Case  1 x User Manual