The electric cello is one that relies on electronic amplification (rather than acoustic resonance) to produce sound. Many electric cellos have bodies modelled after acoustic cellos, while others abandon the design completely, opting for a totally new body shape, or having little or no body at all. Most electric cellos feature a traditional endpin and knee supports. An electric cello with no body can be played in the high positions more easily than an acoustic. Lastly, electric cellos without a resonant body have less of a tendency for feedback than amplified acoustic cellos.