Yamaha YDS-150 Digital Saxophone, Digital Saxophone, Same fingering as an acoustic saxophone -- including high F#, front F, and low A keys, Speaker unit and brass bell (connected by an acoustic tube) in conjunction form the patented acoustic system, IBAS (Integrated Bell Acoustic System): Reproduction of the sound resonance and vibration of an acoustic saxophone, AWM (Advanced Wave Memory) sampling, 73 Sounds - including 56 saxophone sounds, 5 Effects, Volume control with more than 15 levels, Tuning modes: Eb, Bb, C, Tuning: 427 - 453 Hz (adjustable in 0.5 Hz steps), Auto power off, Bluetooth, Customisation via iOs or Android App: Change sounds, fingering, and instrument settings, Stereo headphone output: 3.5 mm Mini jack, Micro USB type B, Powered via battery (4x AAA) or external USB power supply (both not included), Power consumption: 4.5 W (when using USB power supply), Dimensions (W x H x D): 110 x 699 x 103 mm, Weight: 1.0 kg (without batteries), Bell material: Brass (Gold lacquer finish), Includes case, strap, saxophone mouthpiece with plastic reed, ligature, and cap, Suitable stands: Article Nr. #141416#, Article Nr. #228498#, Article Nr. #181842# (all not included)