Features:

 Easy to use,

 Built-in speaker.

 Automatic switch-off.

 Interchangeable probe

 Various battery compatibility:AA alkaline battery and AA Ni-MH rechargeable battery.

 Audio output: can be connected with a recorder to recording sound of fetal heartbeat.Such as computer,MP3/MP4.

 Two colour for host:blue and pink

Specification:
 Ultrasonic Frequency: 2.5 MHz
  Continuous work time:≥ 8 hours
Configuration: 3.6V rechargeable batteryChargerManual

Option: Gelearphonebag

Packing: 

  Dimension97(W)* 37(D)* 132(H)mm
  Weight : 0.35kg
  Quantity:20pcs /carton

  Dimension:45*36*40cm /carton

  N.W.:10kg

  G.W.:14.2kg