OuMandis Wireless Earbuds Bluetooth Headset with Mini Charging Case IPX7 Waterproof TWS Stereo in-Ear Earphones Mini Car Headset Built-in Mic for Cell Phone/Android, Black

Specifications: The earphones adopts Bluetooth 5.1 chip, which can provide fast and stable connection. There is an anti-dust design at the charging port. It is convenient to use them with the intelligent fingerprint touch. The magnetic switch of the charging box protects the charging box. With it, you can enjoy 9D stereo and HiFi music in your spare time. Item Name: Wireless Earphones Bluetooth Protocols: HFP 1.7/HSP 1.2/A2DP 1/AVRCP 1.6/SPP 1.2/PBAP 1.0 Charging Voltage: DC 5V Microphone Sensitivity: -42dB Working Temperature:-10-50 Degree Celsius Frequency Response: 20-20000Hz Sensitivity: 120dB +/- 5dB Transmission Distance: 10m Charging Time: about 1 Hour Total Battery Life: about 220 Hours Earphones Battery Capacity: 50mAh (Included) Charging Box Capacity: 2000mAh (Included) Features: Bluetooth Connection, Large Battery Capacity, 9D Stereo Sound Charging Box Size: 7.8cm x 4.6cm x 3cm/3.15'' x 1.97'' x 1.18'' (Approx.) Notes: Due to the light and screen setting difference, the item's color may be sligh...