Size ConversionInchesCentimetersPlease according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.nullFeatures:In the process of playing, the performer can easily complete the page turning step by simply stepping on the pedal.Free your hands, let the music more smoothly and harmoniously.Simple operation, compatible with IOS/WINDOWS/Android and more.Three colors display battery power level, Green——Above 60%, Yellow——Above 30%, Red——Above 20%. And single charge can be used for 50+ hours.FIve modes work with kinds of apps for reading music, scrolling lyrics or guitar tabs, teleprompting, slide presentations, instrument effects or media control.Enabling Bluetooth on your device, and reading apps including: MusicStand, OnSong, forScore, DD GigBook, MobileSheets,Telepromt +3, Paperless Music, piaScore, NextPage, SongBook, Musicreader4, unrealBook.Specification:Material: PlasticColor: Black, Silver(Optional)Operation Frequency: 2402~2480MHzOperating distance: 10MVoltage: DC5VDimension: 180*105*25mmNet weight: 227gPackage Included:1 x Bluetooth Music Pedal1 x USB Charging Cable1 x User GuideNote:1.Please allow 1-2cm errors due to manual measurement.2.Due to the difference between different monitors, the pictures may not reflect the actual color of the item.