The London 12 is Hiwatt's 12-watt combo guitar amplifier, featuring a 3.5mm headphone output and Bluetooth, making it ideal for practicing. The two channels, Clean and Overdrive, share the treble and bass controls. Black color. OVERVIEW OF THE HIWATT LONDON 12 COMBO BLACK Born in London in the '60s and raised with rock icons, Hiwatt amplifiers embody the classic British guitar sound. The London 12 Combo is a compact and easy-to-carry amplifier, yet its 12 watts of power ensure a high volume for a combo designed for practicing. Bluetooth and the 3.5mm headphone output allow you to practice over backing tracks while listening silently through headphones. It features two channels, Clean and Overdrive, which share the treble and bass controls. Volume and gain controls complete the package. Includes power supply. TECHNICAL SPECIFICATIONS OF THE HIWATT LONDON 12 COMBO BLACK Format: Combo Power: 12 watts Channels: Clean, Overdrive Input: 1/4" jack guitar input and 3.5 mm AUX input Output: 3.5 mm headphone output Controls: Volume, Gain, Bass, Treble Additional functions: Bluetooth Height: 252 mm Width: 203 mm Depth: 125 mm Weight: 2.85 kg Color: Black Power supply: included