features：
▪ delicate appearance, compact design and portable.
▪ simple one-button operation, controlling power and volume as well.
▪ double-channel audio socket design enables it to provide synchronous audio output signals, accessible for headphones or recording devices.
▪ audio signals can be transmitted to another recording device through attached recording cable .
▪ high sensitive ultrasound probe can detect movement sounds of fetal cardiovascular wall at the 16th week of gestation.
▪ unique manufacturing technology is adopted to generate clear fetal heart sound by minimizing ultrasound noise.
specification:
measuring mode: real-time
ultrasound frequency: 3.0mhz
dimension: 104x120x61(mm)
net weight: 140g
battery type: iec6f22 9v alkaline