DESCRIPTION 1000g/0.1g LCD Portable Mini Electronic Digital Scales Pocket Case Postal Kitchen Jewelry Weight Balance Digital Scale US $7.64-9.08/Piece 0.001g Portable Mini Jewelry Scales LED Display Precision Digital Kitchen Pocket Electronic Scale US $12.65-19.09/Piece 200g/0.01G Pocket Digital Scale Silver Coin Gold Diamond Jewelry Weigh Balance Weight Scales US $4.87-6.49/Piece Mini Precision Digital Scales For Silver Coin Gold Diamond Jewelry Weight Balance Car Key Design Weights Electronic Scales 200g/0.01g US $4.71-6.71/Piece Mouse Shape Kitchen Scales 100g 0.01g Portable Digital Jewelry Car Key Scale for Carat Diamond Lab 0.01 Gram Precision US $5.91-6.81/Piece 5000g/1g Digital Electronic Scale Household Kitchen Scale Baking High Precision Pocket Scale Weighing Scales US $6.84-7.8/Piece Diamond Pen Big Crystal Ballpoint Pens Stationery Ballpen Oily Rotate Twisty Black Refill US $0.81-1.92/Piece USA Add A Bead DIY Pen Ballpoint Pens Original Beads Pens Customizable Lamp Work Craft Writing Tool US $0.76-1.04/Piece Creativity Crown Adornment Crystal Pen Gem Ballpoint Ring Wedding Office Metal Rings Roller Ball Pens 8 Style US $0.86-1.76/Piece Crystal Glass Kawaii Ballpoint Pen Big Gem Ball Pens With Large Diamond Fashion School Office Supplies US $0.41-1.22/Piece Multifunctional Mini Metal Ballpoint Pen Outdoor Tool Pen Screwdriver Keychain Short Scale Pens US $1.74-2.48/Piece Product description: 1.61Key (C2~C7) standard tone 5 tone group +1 key. 2.128 kinds of tone, 100 , 40 Option Bonding. 3.LCD liquid crystal display. 4 master volume control keys, beat, control keys. 5 mode selection keys (tone, beat) 6 recording, programming, play function. 7 single finger and multi finger and Hyun Hyun. 8 demonstration jukebox. 9 pairs of keyboard functions. 10 start / stop, sync, insert function keys. Out 11.MIDI function. Can be directly connected to the computer, playing the use of MIDI software,.MIDI OUT connection line is required to edit music 12.2 step teaching func