She has a large vocal range among the VOCALOID2 releases and is considered relatively easy to tune.She has soft cutesy voice with a tense tone.She was sold as a faithful CV portrayal of her provider Megumi Nakajima, so therefore was intended to have a air of realism about her voice. GUMI was designed to be a professional voicebank of good quality and is the voice of a professional singer. Optimum Range: F2 ~ A4 Optimum Tempo: 60 ~ 175BPM Other:DVD-R/RW drive / sound card / Internet connection environment (activation time).VOCALOID2 VST instrument when using Real-time recommended 2GB or more.RAM memory:(The 1GB recommended) 512MB or more.required hard disk space: 600MB or more.OS:(Recommended in the case of stand-alone 8/7/Vista) Windows 8/Windows 7/Vista/XP.recommended Pentium4 2.8 GHz/Ath+ or more.Computer:2000 + more than Pentium4 2 GHz/Athlon XP.