Smart portable design, high-end professional circuit system, professional team of professional R & D and production, excellent quality, perfect sound can be adjusted according to personal preferences, direct manufacturers of export products, solid wood Handmade 5 string acoustic cello cello electronic black ebony inlaid parts white, red, yellow, blue, imitation mahogany color, pink and other colors available 5 and 4 strings, can make the silent practice, support wireless transmitting and receiving