SPECIFICATIONS

Brand Name: NUYIWANK

Style: Ear Hook

Vocalism Principle: Dynamic

Origin: Mainland China

Active Noise-Cancellation: Yes

Material: Plastic

Control Button: No

Communication: WireLess

Volume Control: Yes

Category: Earphones & Headphones

Certification: CE

Certification: RoHS

Number Of Drivers: 4

Plug Type: NONE

Impedance Range: up to 32 Ω

Headphone Pads Material: silicone

Sound Isolating: YES

Support Memory Card: No

Waterproof: Yes

Frequency Response Range: 20 - 20000

Magnet Type: Other

Voice assistant built-in: YES

Wireless Type: bluetooth

Line Length: 15

Package List: User Manual

Package List: Charger

Package List: Charging case

Height[mm]: 20

Width[mm]: 35

Codecs: AAC

Codecs: Apt-X

Codecs: Apt-X HD

Driver Diameter: 8

Resistance: 32

Depth[mm]: 50

Sensitivity: 108

Is wireless: No

Weight[g]: 50

NFC Technology: YES

Connectors: Type c

Earcups Type: Semi-open

Bluetooth Version: 5.3

Battery life up to[hours]: 220

Total Harmonic Distortion: 0.1

Charging Method: Charging case

Max Output: 1

Support APP: Yes

Function: For Internet Bar

Function: for Video Game

Function: Common Headphone

Function: For Mobile Phone

Function: HiFi Headphone

Function: Sport

Function: Kids' Headphones

Function: For Hearing Aid

Function: For Outdoor

Function: For Swimming

Function: For Office

Function: For Sleep

Function: For DJ

Function: For Study

Battery Capacity[mAh]: 2000

Maximum wireless range[m]: 10m-20m

With Microphone: Yes

Features: waterproof

Features: With Microphone

Features: Apple Siri Support

Features: Active Noice Cancelling

Description: 2022 Bluetooth Headphones

Description: New Wireless Headphones

Description: wireless bluetooth earphone

Function: gaming headphones

Function: gaming headset

Function: high quality wireless headphones

Function: wireless earbuds

Function: In-ear headphones

Function: noise canceling headphone

Function: Touch Control headphone

PK: Wireless Headphones M22

PK: Wireless Headphones M10

PK: Wireless Headphones m30

PK: Wireless Headphones M30PRO

PK: Bluetooth Headphones M10

PK: Bluetooth Headphones M22

Choice: yes

semi_Choice: yes

Notes:

If the headset you received has only one earbud to use for the first time, then you can do as I said, delete the bluetooth name in the phone, take all the earbuds out of the charging box, and then pair it again

The earbuds of this product are protected by transparent tape at the charging place of the charging compartment, please tear off the transparent tape as soon as possible after receiving the product and pair

Note:

M21 can be used with one ear and two ears, not all earbuds on a single device.

Link to manual

http://www.315.org.cn/fw/asyt/index.asp?id=19630908373429553246

M21 TWS Wireless Bluetooth Headphones Couple Earbuds Touch Earphones Stereo Sports LED Display 9D Four Headset for Double People For xaiomi  huawei  iphone

Product Description

Product Name ： M21 Tws Earbuds

Material ： PC+ABS

Package ： Gift box

Working distance ： About 10m

Charging input voltage ： 5V

Charging case capacity ：2000mA

Charging Time ：1~2 hours

Standby time ： About 120H

Talking Time ： 3-4 hours (1 time full charged )

Music time ：3-4 hours (1 time full charged )

Founction ： Waterproof, Noise Cancelling, Microphone, Music play/pause, connect/hang phone, reject call, up and down song switching, binaural HD call.

Waterproof ：Waterproof for Life care ( Sweatproof,rainproof,splashproof .Can't use for diving,shower etc. )

Connection method ：single/double free to use

Package Included:

2 pairs * wireless earbuds (left and right)

1 * charging box

1 * Charging cable

1 * QR code （User Manual）

1 * Paper box