We will carefully test every item before shipment.

The quality is guaranteed!

Features:
1.Advanced Bluetooth V5.0 technology and lossless HD rendering technology.
2.Ergonomic design for single/binaural use, with no pain or discomfort after long time used.
3.Mini compact size, comfortable to wear, not easy to fall.
4.CVC noise reduction technology, offering crystal clear sound quantity for hands-free calling.
5.Charging case with LED digital battery power display, also with a key ring, easily take your Bluetooth earbuds everywhere.

Descriptions:
1.Suitable for listening to music, riding bicycle, calling, playing games, watching TV shows, etc.
2.This product continues the classic collar-type micro-arc design, stylish and comfortable, youthful and energetic, and has high-fidelity sound, let you enjoy the auditory feast anytime, anywhere.


Specifications:
Model:X21S
Color: black, white
BT version: V5.0+BR+EDR+BL .E
BT protocol: A2DP/AVCTP/AVDTP/AVRCP/HFP/SPP/SMP
Frequency range: 2402MHz ~ 2480MHz
Modulation method: GFSK / DQPSK; Max Power output: +4dBm
Crystal frequency: 24MHz CPU
Frequency: 96MHZ
Working voltage: DC 2.2V-5.5V
Signal to noise ratio: ≥92dB
Effective distance: 10M barrier-free
Frequency response range: 20HZ-20KHZ
Sensitivity: 98dB
Nominal impedance: 32Ω
Transmission power: Class 2
Battery capacity: 50 mAh
Charging input: 5V / 500mA
Charging time: about 1 hour
Call: 5-6 hours
Play music: 5-7 hours
Standby time: 20-30 days
Stand-alone size 2.8*1.5*2.1cm
Charging bin size 9.2*4.7*2.5cm

Package Included:
Headphones*2
Charging bin*1
Data line*1
Keychain*1
Instruction manual*1

Notes:
1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.
2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!

Feedback

1. Your feedback is really important to us. Please take a few seconds to leave a great feedback if you are satisfied with our product and service, thank you!

2. We always offer the lowest price for best goods and service to you.

3. Big order discount: If you need to place big order which is more than the max quantity, please contact us to get special discount, and we support the wholesale.