SPECIFICATIONS
Brand Name: Lenovo
Style: In-ear
Vocalism Principle: Dynamic
Origin: Mainland China
Material: Plastic
Hign-concerned Chemical: None
Communication: True Wireless
Volume Control: Yes
Category: Earphones & Headphones
Certification: CE
Number Of Drivers: 2
Plug Type: none
Impedance Range: up to 32 Ω
Active Noise-Cancellation: No
Sound Isolating: YES
Support Memory Card: No
Waterproof: No
Frequency Response Range: 20 - 20000
Magnet Type: other
Wireless Type: bluetooth
Package List: User Manual
Package List: Charging case
Package List: Charging Cable
Control Button: Yes
Driver Diameter: 13
Resistance: 32
Sensitivity: 96
Is wireless: Yes
Connectors: Type c
Earcups Type: Sealed
Bluetooth Version: 5.1
Battery life up to[hours]: 5
Total Harmonic Distortion: 1
Charging Method: Charging case
Max Output: 10
Support APP: Yes
Function: for Video Game
Function: Common Headphone
Function: For Mobile Phone
Function: HiFi Headphone
Function: Sport
Function: For Outdoor
Battery Capacity[mAh]: 250
With Microphone: Yes
Features: With Microphone
Features: Active Noice Cancelling
Brand Name: Lenovo
Model Number: LP40 Pro
Name: Lenovo LP40 Pro TWS Earphones Wireless
Earphone Battery: 30MAH
Charging Case Capacity: 300MAH
Color: White Black Purple Pink Green
Feature: HD Call + Sensitive Microphone
Style: Sports+Portable+True Wireless Earphones
Bluetooth Connection Distance: 10M
Choice: yes
semi_Choice: yes

More FAQ.Please check it at the end.
Exquisite and small, with colorful colors, make your life more happy
After the designer's meticulous design, ergonomic design comfortable to wear, bring a new music experience.
Low latency and audio and picture synchronization, HiFi stereo sound quality, create a LIVE-level listening experience, and enjoy your own music scene.
Equipped with intelligent dual processing chip, after the mobile phone transmits the signal, the left and right earphones can receive at the same time, reducing delay and stable signa transmission.
The new metal moving coil horn unit is adopted to make the bass thickfull and powerful
High resolution sound Enhanced stereo sound
New Bluetooth 5.1 Stable and continuous
Metal moving coilhorn unit subwoofer
Master slave switching Any single ear use
high-capacity Long endurance
Voice and video calls without noise
Semi in ear design Comfortable to wear
Type-Cinterface Convenient charging
Multi equipment Bluetooth connectivity

Feature:
⬤[Upgraded Bluetooth 5.1 chip]:Connection is more stable, latency is lower, supports Bluetooth devices.
⬤[13mm dual frequency unit with large moving coil]:Composite dual diaphragm, high frequency analysis
⬤[True TWS]:Independent of main and sub ear, free switching between ears, can be used alone
⬤[Take out and plug in]:Pairing in seconds and automatic pairing after first pairing
⬤[Long battery life]:3-4 hours with one use, and the charging compartment can be used 4 times
Specifications:
[Model]:Lenovo LP40 Pro
[Bluetooth Version]:V5.1
[Operating Time]: 5 hours (with charger)
[Charging time]: 1.5 hours (all technical information depends on actual performance)
[Transmission distance]: Up to 10 metres
[Charging compartment battery capacity]: 250 mAh
What's in the box:
2 x [Bluetooth Headphones].
1 x [User Manual]
1 x [Type-C charging cable].
1 x [Charging Case]