The portable, compact Crate TX30E Taxi/Yellow Battery-Powered Amplifier is designed for players who need a vocal amp, acoustic amp, or electric guitar screamer that can easily go places. The Crate Taxi Amp knows no boundaries. Take it to the beach, camping, or off to work as a street player. The Crate TX30E offers 2 channels (vocal or instrument), 30W RMS power, and operates on DC power from an internal 12V rechargeable battery. For speakers it has an 8" woofer and a piezo tweeter. It cranks and it sounds great. Crate includes a wall charger and 12V adapter with your portable TX30E Amplifier.