Specifications:

• Sensitivity: 32dB
• With Microphone: Yes
• Waterproof: Yes
• Support Memory Card: No
• Origin: CN(Origin)
• Model Number: Lenovo QT81 TWS Wireless Bluetooth Earphone
• Function 1: Very Low Latency
• Function 3: Stereo Sound
• Function: for Video Game
• Volume Control: Yes
• Codecs: none
• Package List: Charging case
• Charging Method: Charging case
• Function: Sport
• Earcups Type: Sealed
• Earphone Capacity: 40mAh
• Standby Time: About 30H
• Music Time: About 30H
• Number Of Drivers: 2
• Features: waterproof
• Communication: Wireless
• Function: Common Headphone
• Vocalism Principle: Dynamic
• Driver Diameter: 10mm
• Function: For Mobile Phone
• Charging Bin Capacity: 1200mAh
• Max Output: 1mW
• Support APP: No
• Connectors: None
• Function 2: Binaural HD Call
• Frequency Response Range: 20 - 20000Hz
• Bluetooth Version: 5.0
• Certification: CE
• Impedance Range: up to 32 Ω
• Features: With Microphone
• Headphone Pads Material: Other
• Control Button: Yes
• Lenovo Model: 500
• Is wireless: Yes
• Magnet Type: Other
• Brand Name: Lenovo
• Line Length: 0m
• Noisy Reduction: CVC 8.0
• Active Noise-Cancellation: Yes
• Resistance: 16Ω
• Wireless Type: bluetooth
• Style: In-ear
• Certification: RoHS
• Plug Type: none