Ultra-fast cooling in 15 seconds without waiting. Imported Panasonic compressor with "strong heart" frequency conversion. Long-lasting battery: only 1 kWh in 7 hours. Separate cooling and heating cycles provide excellent cooling and save electricity. Smart touch LED display: mode, switch, wind speed and temperature information at a glance. Super quiet: The noise level is less than 45 dB. Third speed wind for greater comfort.