HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Need more than 1? Get a bulk buy discount up to 20% off Product Features: 1. Determine VoiceBr>2. The Pronunciation Of Each Group Derived Reference Tone Key ToneBr>3. In Reference Tone Set As The Sound Of The Keys Is Derived For Each Remaining Key ToneBr>4. Pitch Reference Tone Group Tone Keys Each Key Test The Rest Of The Pitch Of The SoundBr>Absolute A-440Hz Tuning Fork Sound Sensing Performance. Soft Shell Case Can Better Protect It From Wearing Out. Specification Custom General Material: MetalBr> Manner Of Articulation: OtherBr> Number Of Holes: OtherBr> Key Number: OtherP>Dimensions And Weight Package Weight: 0.0350 KgP>You Will Receive You Will Receive: 1 X A Tuning ForkP>