TWS wireless stereo sports headset

$0.99

Working voltage: DC 2.2V-5.5V Signal to noise ratio: 92dB Effective distance: barrier-free 10M Frequency response range: 20HZ-20KHZ Sensitivity: 98dB Nominal impedance: 32 Transmission power: Class 2 Headphone battery capacity: 50 mA/pc Rechargeable battery capacity: 300 mA Charging input: 5V /500mA Charging time: about 2 hours Hours of use: 8-10 hours of talking, 5-7 hours of music playing Standby time: 10-15 days