BOUNCE – AURICULARES WIRELESS BLUETOOTH HEADPHONESCIRCUM-AURAL HEADPHONES – ROTATING PADS – INTEGRATED CONTROLS – 3.5 MM JACK CABLE – INTEGRATED UNIVERSAL MICROPHONE – USB/USB-C CHARGING CABLE – POWER SUPPLY: 3.7V BATTERY – 500 MAH – AUTONOMY: UP TO 50 HOURS OF LISTENING – BLUETOOTH 5.3 – MAGNET DIAMETER: 40 MM – FREQUENCY RANGE: 20 – 20,000 HZ – SENSITIVITY: 102 DB – SIGNAL TO NOISE RATIO: 90 DB – IMPEDANCE: 32 OHM – COUL. BLACK