Specifications:BD&M earbuds with Bluetooth 5.3 chip, which has stable transmission and low power consumption.built-in rechargeable battery, which has a long standby time.Lightweight charging box for easy carrying.Ergonomic earphones are comfortable to ears and they are very suitable for running, walking, or other sports. Compatible with iPhone & Android & ALL Bluetooth devices. --------------------------------------Item Type: Wireless Earbuds Material :ABS Bluetooth Version: 5.3 Support Protocols: A2DP/AVRCP/HSP/HFP Connected distance: 15m Pairing Method: Automatic Matching After Power On Battery Capacity: 40mAh for Single Earphone, 300mAh for Charging Box (Included) Charging Box Charging port: USB-C--------------------------------------▶Music Time: 4 Hours (Depending on Volume) ▶Talk Time◀: 4 Hours (Depending on Volume) ▶Earbuds Charging◀ Time: 1 Hour ▶Box Charging Time◀: 1 Hour ◤Features◢Wireless, Bluetooth 5.3, In-Ear, with Charging case --------------------------------------Package Includes: 1 Pair of Wireless Earbuds 1 x Charging Case 1 x USB Type-C Charging Cable 1 x User Manual 2x pairs of ear caps