Boss Katana-Air

From the listing

Seller's description

SPECIFICATIONS (KATANA-AIR)Rated Power Output30 W (15 W+15 W) (when using the AC adaptor) 20 W (10 W+10 W) (when using the Alkaline batteries) Nominal Input LevelINPUT: -10 dBu (1 M ohm) AUX IN: -10 dBu Speakers7.5 cm (3 inches) x 2 ControlsPOWER button Bluetooth button MASTER knob [AMPLIFIER] AMP TYPE knob GAIN knob VOLUME knob [EQUALIZER] BASS knob MIDDLE knob TREBLE knob [MULTI EFFECT] BST/MOD knob BST/MOD button DELAY/FX knob DELAY/FX button TAP button REVERB knob REVERB button [TONE SETTING] CH A button CH B button PANEL button IndicatorsPOWER Bluetooth Guitar Wireless PANEL CH A CH B BST/MOD DELAY/FX REVERB TAP ConnectorsInput jack: 1/4-inch phone type AUX IN jack: Stereo miniature phone type PHONES/REC OUT jack: Stereo miniature phone type TRANSMITTER IN jack: Stereo 1/4-inch phone type USB port: USB B type DC IN jack Power SupplyAC adaptor (DC 13 V) Alkaline battery (AA, LR6) x 8 Rechargeable Ni-MH battery (AA, HR6) x 8 Current Draw680 mA Expected battery life under continuous useAlkaline battery: Approximately 7 hours Rechargeable Ni-MH battery: Approximately 10 hours * When using batteries having a capacity of 2500 mAh. * These can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use. AccessoriesOwner’s manual Leaflet USING THE UNIT SAFELY Transmitter AC adaptor Power cord SIZE AND WEIGHT (KATANA-AIR)Width350 mm 13-13/16 inches Depth144 mm 5-11/16 inches Height181 mm 7-1/8 inches Weight (excluding batteries)2.2 kg 4 lbs 14 oz