Life warrantly by Worldcell Worldcell is committed to 100% satisfaction of our customers,provides lifetime warranty for the case. Any issue with the product, please feel free to contact with us. We will fulfill your request promptly. Provide customers satisfied products and provide our 5 stars customer service is our job. Thanks for you choosing Worldcell. Specification Bluetooth version:V4.1 Frequency range:2.4GHz-2.48GHz Operating distance: up to 10m(free space) Standy time: up to 180hrs Talking/music-playing time: about 5 hours Charging time:about 2 hours Bluetooth profiles:A2DP,AVRCP,HSP,HFP Frequency response:20-22kHz Operating Temperature:-10℃~50℃ package including 1.Bluetooth sports headset 1pc User's Manual 1pc USB charging cable 1pc Secuity usage hint 1.Should adjust volume and time reasonably when using the headset 2.Please stop using the headset in potentially hazardous situation to ensure your safty 3.Put this product and its accessory somewhere out of the children to avoid a fatal danger caused by inappropriate use. 4.Should avoid turning the volume so high that you can't hear anything around you. If you feel a tinnitus or thte volume is too high please reduce the volume. 5.The headset should not stored or used at temperatures below 15℃ or above 55 ℃ which may shorten headset or battery life. Lighweight,Sweat Proof, Comfortable,Pure Stereo HD Sound With the bluetooth headset, running,gym workouts and sports training will be easier and more convenience that even before. Lightweight and sweat proof,stable in ear, it's freedom in sports.Adoption of high speed bluetooth CSR 4.1 standard to ensure lossless and pure stereo sound audio transmission.
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