L22 Bluetooth Earphone With Microphone LED Display Wireless Bluetooth Earbuds Waterproof Noise Cancelling Headsets Parameters: Bluetooth Transmission Range: 10 Meters Rechargeable Battery Capacity: 350 Mah Headphone Battery Capacity: 40 Mah Working Time: About 2-5 hours Charging Time: About 1-2 hours Standby Time: About 120 hours Material: ABS Waterproof Rating: IPX4 Operation Mode: Buttons Compatible: For Android, iOS, 99% of the phones with Bluetooth. Features: Full Frequency HIFI Moving Iron LED Digital Display, Real-Time Power Display, Power Level At A Glance The Left And Right Ears Can Be Used Separately And Can Be Independently Matched With Bluetooth Devices Smart Buttons Design, Easy To Operate Bluetooth 5.0, Low Power Consumption Note: Due to long-term transportation, the power of the earphone will be exhausted. You will not be able to use the headset when you receive the package. It may be powered off. The first thing to do is to charge the headset box for 30 minutes. Very important. Thank you! Packing List: 1x Bluetooth Headset(L) 1x Bluetooth Headset(R) 1x charging box 1x data cable 1x use manual L22 Bluetooth Earphone With Microphone LED Display Wireless Bluetooth Earbuds Waterproof Noise Cancelling Headsets Parameters: Bluetooth Transmission Range: 10 Meters Rechargeable Battery Capacity: 350 Mah Headphone Battery Capacity: 40 Mah