Bluetooth version
V5.0Frequency
2.402-2.480GHZ, 2.4G ISM bandFrequency response
20 Hz-20 KHzSignal-to-noise ratio (SNR)
70Db;Total harmonic distortion (THD) 0.1%Power indicator
red and blue lights flash alternatelyHeadphone charging
rechargeable 400MAH lithium batteryCharging port
Mini 5-pin USB charging portNormal charging time
2.5 hoursTalk time
up to 10 hoursStandby time
up to 20 daysPackage Included:1* earphone1* Charging cable1* 3.5mm audio cableThe sound insulation effect of the earphone is good, and the sound field effect is unmatched by earplugs, and it is more windy when taken out.Reduce the interference of external noise to music, provide a closed environment, greatly reduce sound leakage, in a noisy environment, you can enjoy music at a relatively low volume without being affected.Avoid scratching the ear canal, the ear canal will not be tired after listening to music for a day.