S9 Wireless Bluetooth 5.0 Single Earbuds Stereo Mini In-ear Sport Earphone Headphone With Portable Charging Box

Product Lists:
1 x bluetooth Earbud
1 x USB Charging Cable
1 x Power Charging Case

Features:
1. Fit bluetooth 5.0 technology: The most state of the art bluetooth 5.0 tech allows a stable connection up to 700 inches.
2. Auto pairing, take out the automatic power-on connection, memory connection, no need for cumbersome operation.
3. CVC noise reduction technology and HiFi quality: improve the recognition level of voice, and can easily communicate even in noisy environment. Make the call clearer and more real.
4. Portable charging box: With 380mAh portable charging box which can power your earphone for 8 times.The headphones can be continuously listened to music for about 5 hours when the headphones are fully charged.
5. Mini stealth earphone, lightweight, and the ergonomic design brings you comfortable and cozy wearing experience.
6. Waterproof design: The nano-coating has multiple protections to prevent sweat from damaging the components and can run in the light rain.

Specifications:
Wearing Type: In-ear
Microphone: Yes
bluetooth Version: V5.0
Transmission Distance: 15-20m
Supply voltage: low power 3.3V-4.2V
Support protocols: A2DP ... HSP, AVRCP and HFP
Operating current: 1111th
Holding current: <1.3mA
Shutdown current: ≤2uA
Temperature range: -40 ° C ~ + 80 ° C
Transmission power: CLASS2
Sensitivity: -90dBm
Frequency range: 2.4 ~ 2.480 GHZ
Audio Performance: supports high-quality audio, built-in DSP
Audio-noise signal ratio:> 75dB
Distortion: ≤1%
Battery Capacity: 380mAh (Charger Box), 45mAh (Each Earphone)