Play the saxophone anytime, anywhere. Featuring the Integrated Bell Acoustic System, this is a unique digital saxophone that lets you control the volume and still maintain a seamless sense of expressive unity with the instrument.   YDS-150 Size/Weight DimensionsWidth 110mm Height 699mm Depth 103mm WeightWeight 1.0kg not including batteries Material Bell Yellow Brass/Gold lacquer finish Control Interface KeyKey systems Fingering same as Saxophone, High-F#, Front-F, LowA Other ControllersOthers Analog controller Voices Tone GenerationTone Generating Technology AWM Sampling PresetNumber of Voices 73 voices (incl. 56 sax voices) Key Key Eb, Bb, C (Sync with voice) Functions Overall ControlsTuning 427.0 - 440.0 - 453.0Hz, approx. 0.5Hz increments Wireless Bluetooth Audio Effects TypesEffect 5 types (for Headphones) Storage and Connectivity ConnectivityHeadphones Stereo-mini AUX IN Stereo-mini USB TO HOST micro USB Type-B Power Supply Power Supply USB Power Adaptors:5V/1A (micro USB Type-B), batteries (four “AAA” size alkaline [LR3]) or Ni-MH rechargeable [HR3] batteries) Power Consumption 4.5W (When using USB Power adaptor) Auto Power Off Function YES Accessories Included Accessories Mouthpiece set (Mouthpiece for YDS, Reed, Ligature, Mouthpiece cap), Soft case, Strap