The Lenovo QT81 TWS wireless earbuds come with a big battery 1200mA charging case that has a digital display showing the main charging battery level and individual left/right earphone battery levels and also operates as a power bank to charge other devices.
Get around 30 hours of music before the charging case needs a recharge. The charging case can recharge the earbuds approximately 15 times.
CVC 8.0 noise reduction technology and auto-pairing when removed from the charging case.
Specifications:
Control Button: No
Active Noise-Cancellation: No
Communication: True Wireless
Max Output: 3mW
Impedance Range: up to 32 Ω
Connectors: USB
Driver Diameter: 10mm
Resistance: 16Ω
Waterproof: Yes
Frequency Response Range: 20 - 20000Hz
With Microphone: Yes