The MA-40ER is a compact and multipurpose public address mixer amplifier with USB, Tuner & Bluetooth, which is typically used in retail stores, bars, restaurants and office buildings. It is generally offered where small size audio systems are required with easy installation and operation. This amplifier can be used as a table top standing device which supports audio from various sources such as media players, radio tuners etc. Having features such as volume control, chime function, etc. It is ideal for paging announcements with easy operations and high efficiency.