Mighty Air is a wireless stereo guitar / bass amplifier with Bluetooth connectivity and an inbuilt rec-chargeable battery. The Mighty Air can be powered and re-charged from any USB power source of 2A or above. Dedicated guitar and bass amp and speaker presets are provided by NU-X's proprietary TSAC high definition modelling, along with an acoustic simulator and a full compliment of effects for all genres. A plug in 2.4GHz wireless guitar transmitter enables full wireless freedom and is rechargeable directly from the amplifier's input jack. Audio streaming from your mobile device is also featured for playback of tracks to jam along with or even as a standalone high quality music player. A fully featured built-in drum machine and dedicated Mighty Air app for Android or iOS complete the feature set. The Mighty Air is perfect for bedroom practice, pre-show warming up, travel entertainment and more.Power supply: Internal battery or USB 5V, 2000mAvbCrLfRecharge time: 3 hoursvbCrLfBattery life: Up to 18 hours (playback), up to 3 hours (guitar/bass transmitter)vbCrLfSpeaker : drivers: 2 x 50mm (2") + passive bass radiatorvbCrLfOutput power @ 4 Ohms: 10WvbCrLfInput impedance: 1M Ohm (input jack or transmitter)vbCrLfAux Input Impedance: 22k OhmsvbCrLfFrequency response: 20Hz - 22kHzvbCrLfBluetooth version: 4.2vbCrLfBluetooth range: Up to 10mvbCrLfTransmitter : frequency: 2.4GHz bandvbCrLfLatency: <5msvbCrLfWireless range: 15mvbCrLfDimensions : amplifier: 186 x 98 x 91mmvbCrLfWeight : amplifier: 780gvbCrLfDimensions : transmitter: 107 x 29 x 21mmvbCrLfWeight : transmitter: 35gvbCrLfSampling format: 24-bit, 44.1MHzvbCrLfInputs: USB C (power), 6.3mm jack (guitar + charge), 3.5mm (Aux in)vbCrLfHeadphone output: 3.5mm stereo jack