Wi-FiMusicCast SurroundMusicCast StereoAirPlayBluetoothVersion/ProfileAudio CodecMaximum Communication RangeFile FormatPreset MemoryEthernetAlarmSpeaker UnitMaximum Output PowerPower SupplyPower ConsumptionStandby Power ConsumptionDimensions (W x H x D)WeightColours MusicCast 20 (WX-021) MusicCast 20 (WX-021) DESKTOP AUDIO SYSTEM Wi-FiYes (2.4 / 5 GHz) MusicCast SurroundYes (dual only) MusicCast StereoYes AirPlayYes (AirPlay 2 via firmware update) BluetoothVersion/ProfileVer. 4.2 + EDR / A2DP, AVRCP Audio CodecSBC, AAC* (*Receiving Only) Maximum Communication Range10 m / 32.8 ft. 10 in. (without interference) File FormatMP3 / WMA / MPEG-4 AAC: up to 48 kHz / 16-bit, ALAC: up to 96 kHz / 24-bit, FLAC / WAV / AIFF: up to 192 kHz / 24-bit Preset MemoryYes EthernetYes AlarmAlarm, Snooze, Sleep Speaker Unit9 cm (3-1/2”) woofer x 1, 3 cm (1-1/8″) soft dome tweeter x 1, Passive radiator x 2 Maximum Output Power40 W (Woofer 25 W + Tweeter 15 W) Power SupplyAC Power Consumption10 W Standby Power Consumption1.9 W (Network Standby ON, Bluetooth Standby ON), 0.3 W (Network and Bluetooth Standby OFF) Dimensions (W x H x D)150 x 186 x 130 mm 5-7/8” x 7-3/8” x 5-1/8” Weight2.2 kg 4.8 lbs ColoursBlack, White.