Tangmai Flexible Neckband Wireless bluetooth Earphone Stereo Sports Headphone for iPhone 8 6X

Features:Excellent Sound Performance: The In-ear design reduces most of the surrounding noise, giving you high definition sound. Built-in speaker delivers clear voice, ensuring you to make high quality calls even in a noisy place.ComfortableSecure Fit: Lightweight and ergonomic design offers you extra flexibility, portability and durability.Advanced bluetooth 4.1: Provides instant and stable paring with all bluetooth enabled devices, delivering impressive dynamic sound even you are 10-meter away from your device.Long Battery LifeLightweight: Upgraded built-in lithium batteries support up to 8 hours of continuous music for prolonging enjoyment.Specification:bluetooth Version: V4.1Operation Range: Up to 33 feet/10mTalk/Playing Time: Up to 8 hoursStandby Time: Up to 200 hoursCharging Time: 2.5 hourBattery Capacity: 90mAhFrequency: 20-20000HzChannel: Double ChannelsPackage included:1x Wireless bluetooth Headset1x USB Cable1x User Manual