Brand Name: Rofunelec
Style: In-Ear
Certification: CE
Vocalism Principle: Dynamic
Origin: CN(Origin)
Control Button: Yes
Active Noise-Cancellation: No
Communication: True Wireless
Volume Control: No
Sensitivity: 85dB
Wireless Type: bluetooth
Is wireless: Yes
Max Output: 1mW
Line Length: 0m
Support APP: No
Function: for Video Game
Function: Common Headphone
Function: For Mobile Phone
Function: HiFi Headphone
Function: Sport
Number Of Drivers: 2
Plug Type: NONE
Package List: User Manual
Package List: Charging case
Package List: Charging Cable
Impedance Range: up to 32 Ω
Connectors: USB
Model Number: Bluetooth Earphone X21S
Earcups Type: Sealed
Headphone Pads Material: Other
Bluetooth Version: 5.0
Codecs: NONE
Support Memory Card: No
Driver Diameter: 10mm
Resistance: 32Ω
Waterproof: Yes
Frequency Response Range: 20 - 24000Hz
Total Harmonic Distortion: 2%
With Microphone: Yes
Features: waterproof
Features: With Microphone
Features: Apple Siri Support
Charging Method: Charging case
Magnet Type: Other
Transmission distance: 5-10 meters
Single earphone battery capacity: 50mAh
Automatic pairing: Support
Waterproof upgrage: IPX5
Connection: Wireless bluetooth earphones
Applicable mobile phones: Samsung Xiaomi Huawei iPhone OPPO etc., all
Features 2: HIFI headphones with microphone
Features 3: In ear earbuds headphones