Specifications:The main functions of this headset are power display, voice control, call function, music support, multi-point connection, and NFC function.Using bluetooth-compatible V4.1 and true wireless stereo, with clear bass sound quality.This in-ear headset has multi-channel noise reduction technology that can eliminate some environmental noise and echo.It is lightweight and soft, and also is comfortable to wear.Item Name: bluetooth-compatible Wireless HeadsetBattery Capacity: 60mAh(Included)Talk Time: 5 HoursListening Time: 6 HoursCharging Time: 2 HoursBluetooth Version: bluetooth-compatible V4.1Transmission Distance: about 10 Meters/32.81 feetMaterial: ABSFeatures: in-Ear, Power Display, Noise Reduction Technology, Lightweight, Comfortable to WearSize: 4cm x 4cm x 3cm/1.57" x 1.57" x 1.18" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x bluetooth-compatible Wireless Headset1 x USB Charging Cable1 x User Manual