Multi-function FM/AM/SW receiver, equipped with a VU meter and pop-up antenna. - Model: ICF-5500A - Brand: SONY - Power Source: AC adapter included - Functions: FM/AM/SW receiver - Antenna: Pop-up antenna - Volume Adjustment: Bass and treble adjustable - Meter: Equipped with VU meter - Switches: Mute/X-tal switch - Sensitivity Adjustment: AFC/MW sensitivity adjustment I have confirmed that FM and MW radio work, but I don't know how to use the other functions. It's an old item, so I would appreciate it if someone who knows how to use it could help. Thank you for looking.