KUULAA KL-O153 Bluetooth Earphones 5.0 Wireless In Ear TWS Touch Earphones(Black)

1. Bluetooth version: 5.02. Transmission distance: about 10-15m3. Bluetooth name: J184. Frequency range: 20-20ΚΗΖ5. Charging time: about 50 minutes6. Standby time: about 120 hours7. Music time: about 3.5 hours8. Charging port: USB9. Support Bluetooth protocol: A2DP1.0 AVRCP1.5 AVDTP1.0/1.4 HFP1.5 GAVDP1.010. Battery capacity: 30mAh (headset), 250mAh (charging bin)11. Size: about 16.7 x 43.8 x 6.1mm for headset, 55 x 44.3mm for charging compartment12. Weight: headphones about 6.7g, charging bin about 36.3gFeatures:1. Take out the headset can be quickly connected to the phone2. Bluetooth 5.0 technology, connection distance up to 15m, fast transmission3. Headset multi-functional touch operation4. Wearing comfort without feeling5. Left and right headphones at the same time built-in chip, the main and vice headphones switch freely6. Comfortable frosted appearance, smooth and delicate7. Charging compartment with indicator: when charging, the red light flashes slowly, when fully charged, the green light is always on8. Charging compartment magnetic switch design