Specifications:Lossless high clarity sound quality with deep bass and crystal crisp treble, enjoy your music moment even in a loud environment.It supports active noise reduction function and intelligent filtering of surrounding environment noise.The earbuds could be used to answer/reject calling, skip/play/pause songs, and activate voice assistant.The pair of earbuds can be used separately or together.Item Name: bluetooth-compatible EarphonesMaterial: ABSTransmission Distance: 10MMusic Time: About 5HStandby Time: About 100HEarphone Battery: Built-in 50mAh (Included)Charging Box Battery: Built-in 300mAh (Included)Charging Time: About 1-2 HAutomatic Start and Pairing: YesFeatures: Wireless, bluetooth-compatible 5.0, StereoSingle Earphone Size: 22.9mm x 16mm x 26.5mm/0.90" x 0.63" x 1.04" (Approx.)Charging Box Size: 64.5mm x 44mm x 34mm/2.54" x 1.73" x 1.34" (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:2 x bluetooth-compatible Earphones1 x Charging Box1 x Charging Cable1 x User Manual3 Pair of Eartips (3 Different Size)