Pitch, volume and touch control are easily adjustable.
Can be used with the included earphones, or with a headset or sound system.
Length: 9" Key of Bb (pitch adjustable in either direction)
Uses three 1.5 Volt LR44, SR44, or V357 batteries. Expected lifetime is approx. 50 hours. To replace all 3 batteries remove the plug by gently pulling DO NOT UNSCREW THE PLUG insert batteries postive towards the plug
The earphones play out of one side only with monaural equipment, but a mono adapter can be purchased at an electronics store to divide the sound between both sides.