Description:It is this Bluetooth-compatible earphones features that provides passive noise reduction, allowing you to enjoy music comfortably in a variety of noisy environments.This Bluetooth-compatible earphones fits snugly into the contours of your ears, so that it doesn't fall off even when you're exercising.Made of ABS and PC, this product is durable and eco-friendly.The length of the product is 4.3cm, the width is 4.3cm, and the height is 2.2cm.It is suitable for business, game, music, walking, sport.Item Name: Bluetooth-compatible EarphonesMaterial: ABS,PCBluetooth-compatible Version: 5.1Earphone: 40mAh Rechargeable Battery Charging Case :270mAh Rechargeable Battery Charging Time: Case/2 Hours; Earphone/1.5 Hours Music Time: 6 HoursCase Provide Power to Earphones: About 2 Times Transmission Distance: 10 Meters Speaker Diameter: 13mm Earphone Operation: Touch Operation Charge Port: Type CWaterproof Rate: IPX5Features: Ultra-long Standby Time, Noise CancelingSize Details: 4.3cm x 4.3cm x 2.2cm/1.69" x 1.69" x 0.87" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Pair of Bluetooth-compatible Earphones1 x Charging Case1 x USB Type-C Cable1 x User Manual