You don't need any skills to use earbuds. You only need to take out wireless earbuds from the charge case.
Featuring Bluetooth 5.0 and lossless HD rendering technology that produce incredible sound quality with deep bass and crystal crisp treble.
True wireless earbuds can block out a lot of surrounding noises, and do avoid wind noise created during running, biking, jogging, etc.
Extremely light weight and Earflap design with two pairs of ear tips to ensure your headphones stay firmly in place and improve the experience on sports.
It is up to 4 hours playing time when headphones fully charged.


Specification:

Line Length: None
With Microphone: Yes
Wireless Type: BT
Resistance: 32Ω

Support Agreement: HSP/HFP/A2DP/AVRCP

Function: For Mobile Phone,HiFi Headphone,For iPod,Sport
Support Apt-x: No
Style: In-Ear
Connectors: None
Communication: Wireless
Support Memory Card: No
Plug Type: Line Type
Active Noise-Cancellation: No
Is wireless: Yes
Vocalism Principle: Dynamic
Volume Control: No
Control Button: Yes
BT :Bluetooth 5.0

Frequency:20Hz-10KHz
Earphone capacity:  50mAh
Capacity: 300MAH

Use time:2-3H

Colour: black
Package Included:

1 x Pair Wireless Bluetooth Earbuds (Left & Right) 
1 x Magnetic Charging Case
1 x USB Cable 
1 x User Manual                                    
        
The earphone has Bluetooth 5.0 chip, which has fast and stable connection.
With smart touch operation, it is convenient to use.
It has built-in active noise reduction IC, providing HD phone call.
You can use one earphone or two with HiFi stereo sound.

Item Name: Wireless Earphone
Material: ABS
Model: F9-5C
Bluetooth Version: 5.0
Protocols: HFP 1.7/HSP 1.2/A2DP 1/AVRCP1.6/SPP 1.2/PBAP 1.0
Charging Voltage: DC 5V
Microphone Sensitivity: -42Db
Working Temperature: -10-50 Degree Celsius
Frequency Response Range: 20-20000Hz
Sensitivity: 120dB +/- 5dB
Transmission Distance: 10m
Charging Time: about 1 Hour
Cumulative Work Time: about 220 hours (with Fully Charged Charging Box)
Earphone Battery Capacity: 50mAh (Included)
Charging Box Battery Capacity: 2000mAh (Included)
Features: Rechargeable, Portable, Smart Charge
Charging Box Size: 14cm x 10cm x 4cm/5.51" x 3.94" x 1.57" (Approx.)

Notes:
Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.

Package Includes:
2 x Wireless Earphones
6 x Ear Caps
1 x Charging Box
1 x Charging Cable
1 x User Manual