Specifications:Ergonomic in-ear design, comfortable to wear.The charging box is small and portable, you can put it in your pocket when you go out.Bluetooth 5.0, faster and more stable transmission, supports hands-free call.A nice gift for your friends.Item Name: Wireless EarphonesMaterial: ABSBluetooth Version: 5.0Effective Straight Distance: 10-15mSpeaker: Graphene Speaker, 6mmBattery Capacity: 45mAh for Single Earphone, 420mAh for Charging BoxPlayback Time: 4 Hours for Single Earphone, 3-4 Hours for Dual EarphonesStandby Time: 100 Hours for Single Earphone, 60 Hours for Dual EarphonesCharging Time: about 50 Minutes for Earphones, about 1 Hour for Charging BoxFeatures: Wireless, bluetooth-compatible 5.0, In-ear, with Charging BoxSingle Earphone Size: 3cm x 2.6cm x 1.83cm/1.18" x 1.02" x 0.72" (Approx.)Charging Box Size: 6.75cm x 4.6cm x 3.3cm/2.66" x 1.81" x 1.30" (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 Wireless Earphones1 x Charging Box1 x Charging Cable