TWS 5.0 F9-5 Sport Stereo Earphones Charging Box 9D Waterproof Earbuds

Description –Model: F9-5c TWS earphone –Color: black, white — version: V5.0 –Charging voltage: DC 5V –Microphone sensitivity: -42db –Working temperature: -10-50°C –Frequency response range: 20-20000Hz –Sensitivity: 120db /- 5db –Transmission distance: 10m –Charging time: about 1 hour –Listening time: about 4-5 hours –Cumulative battery life: about 220 hours –Earphone battery capacity: 50mAh –Charging box battery capacity: 1500mAh (actually about 1200-2000mAh) Package included: –2 * headset –1 * Charging box –1 * Charging cable –1 * User Manual