1,Noise Reduction Function: Each earbud's built-in noise reduction microphone and the environmental noise      reduction technology can monitor the sound around you, providing you with a quieter listening experience.
2,Seamless Switching: These wireless earphones feature the latest technology and dual-channel transmission to ensure a fast and ultra-stable connection within a about10-meter barrier-free range, providing you with a seamless immersive experience.
3,Cool Shell: Cool RGB lighting is designed on the wireless earphones charging compartment to highlight the unique atmosphere effect. Long press the right ear for 2S and let go to change the mode.
4,Quick Charging: The fast charging technology for the charging compartment supports 5 minutes of fast charging and 1 hour of playback. You can get enough power for work or exercise.
5,Ergonomic Design: The in-ear headphones adopt an ergonomic design, which can perfectly fit your ears so that you will not feel uncomfortable wearing them all day.

Descriptions:
A breathing light with a unique crack effect is designed on the noise cancelling earbuds charging compartment. Each earbud with a built-in noise reduction microphone can achieve the maximum depth of noise reduction. This charging compartment with a Type-C cable generate fast wired charging. The fast charging technology supports 5 minutes of fast charging and 1 hour of playtime.

Specification:
Operating voltage: DC5V
Sensitivity: 100±3db
Headset battery specification: 3.7V/35mAh
Charging compartment battery specification: 3.7V/300mAh
Play music length: 6H
Talking time:5H
Standby time: 120H
Frequency range: 20--20KHz
Support wireless format: HSP/HEP/A2DP/AVRCP
Chip model: AD6973D4
Wireless version: V5.1
Transmit power: Class 2 (-6dbm - +2dbm)
Operating band: 2.4G ISM band (2.402-2.480GHZ)
Wireless working distance: 10 meters open full angle
Charging time of headset: 1.5H
Charging box charging time: 1.5H
Charging access mode: TYPC
Charging voltage: DC5V
Speaker specifications: D13 * 2.8MM
Frequency range: 20-20KHZ
Sensitivity: 100DB
Power range: 2.2mW
Speaker impedance: 32R
LED: headphone red and blue / charging bin red and blue
Operation mode: touch
Size: about 60*60*33mm/ 2.36*2.36*1.29in
Weight: about 42g

Packing List:
1* pair earphones
1*charging cable