Freebuds3i headphones adopt dual-microphone active noise reduction technology, and three-microphone call noise reduction.
Humane capacitive sensor, built-in 10mm large-size moving coil unit, and high-sensitivity polymer composite diaphragm make the audio signal fully respond.
Both headphones have built-in capacitive touch sensors.
Support short-range Bluetooth connection. Open the charging box, and the phone can automatically pop up the window. Time for listening to songs with charging box 14.5 hours, and time for talking with charging box 10.5 hours. IP54 dustproof and splash-proof.