Newest Xiaomi Collar Bluetooth Headset Youth Version 2018 New Neckband Sports Earphone Fast Charge Mi Wireless Headphone D5|Bluetooth Earphones & Headphones?Newest Xiaomi Collar Bluetooth Headset Youth Version 2018 New Neckband Sports Earphone Fast Charge Mi Wireless HeadphoneFeatures:1. Youth color matching, neckband design / composite diaphragm and large dynamic driver / 1 hour full charging.2. Lightweight TPE material, better elasticity, automatic rebound.3. Lightweight, only 35g, ergonomically designed for more comfortable wearing.4. 7 hours of music playback time.5. Segmented button design is sensitive, half-ear earphones, and fits the ear.Specifications:General SpecificationXiaomiColorBlack, OrangeWearing TypeHalf-earMaterialTPE, MetalNet Weight (g)35gTechnical ParametersMicrophoneYesWired ControlSupportBluetooth VersionV4.1Transmission Distance10mBluetooth ProtocolA2DP,AVRCPFrequency Response20-20kHzBattery Capacity137mAh,?3.7VCharging Time (h)1hTalking Time?(h)7hWorking Time (h)7hPackageIncluded:1*?Xiaomi Youth Version Neckband Wireless Bluetooth Earphone?1* USB Charging Cable