PLAYACOUSTIC TC Helicon I purchased this and have kept it in storage without using it even once. TC HELICON [PLAY ACOUSTIC] Vocal Effects Processor Floor-type multi-effects processor for acoustic singers ■ Multi-effects processor ideal for connecting a vocal microphone and an acoustic-electric guitar for singing and playing ■ Built-in various studio-grade effects by TC Helicon ■ Built-in guitar effects such as reverb and delay using TC Electronic's popular effect pedal algorithms ■ BodyRez effect that maximizes the sound of an acoustic guitar ■ Preset management and software updates via VoiceSupport2 software ■ Low-noise, high-quality microphone preamplifier ■ HIT button for batch control of effects ■ Looper function to expand performance possibilities ■ Anti-feedback function ■ Automatically detects the key from the guitar input ■ USB audio interface function ■ Adaptive tone function that automatically optimizes vocal quality ■ Power adapter included ■ Dimensions, weight: 200 x 45 x 156 mm (W x H x D), 1kg