*Features*: **CONVENIENT NECKBAND & MAGNETIC DESIGN*:The neck-behind wearing style provides a comfortable fit and easy button control. The built-in magnet attracts the earplugs firmly when you don’t need them,thoroughly eliminating the burden on ears and giving you a convenient storage way to carry around. **ADVANCED WIRELESS4.0 TECHNOLOGY*:It provides a several-second and stable paring with your Wireless-enabled device. Offering you impressive dynamic sound even you are 10 meters away from your Wireless-enabled devices. **NOISE REDUCTION & ECHO CANCELLATION TECHNOLOGY*:Our Sport Wireless headset can filter out background noise and cancel echo to guarantee high quality sound and provides you crystal clear sound detail of calls. **FLEXIBLE & LIGHTWEIGHT*:Headset weighs only 176.9g/0.39lbs in flexible and durable silicone neckband,about 50% lighter than other neckband headsets. You’ll even forget you have them on. **HANDS-FREE CALLING WITH BUILT-IN MIC*:Headset comes with built-in high sensitive microphone and allows auto switching between music and calls. It also support vibration alert for incoming calls. **LONG BATTERY LIFE*:Built-in 180mAh rechargeable lithium battery lasts up to 3 Hrs of talking /Music playing time and 100 hours of standby time per charge cycle. *Specifications*:  Wireless Specification: Wireless 4.0  Frequency Range: 2.4026-2.480Ghz  Battery: Battery 3.7V 180mAh  Standby Time: Up to 100 Hours  Talk /Music Time: Up to 2-3 Hours  Charging Time:＜2.0 Hours  Operating Range: Up to 10m/32.8ft  Operation Temperature: -10℃-60℃  Color Available: white, black, blue, yellow, purple, red, green, hot pink  Item Size: 16.8 x 1.8 x 13.5cm/6.6’’x0.7’’x5.3’’ (L×W×H)  Item Weight: 176.9g/0.39lbs  Package Size: 16.2 x 2.2 x 19.5cm/6.38’’x0.87x7.68’’ (L×W×H)  Package Weight: 222.9g/0.49lbs *Package Lists*: 1 x Wireless Sports Stereo Headset  1 x Charging Cable  2 x Pairs of Silicone Ear Tips (Different Size)  1 x User Manual