BPL FD 9714 - Large LCD Display: 2.0? colour LCD display with backlit provides excellent display quality - 2.5MHz High Sensitivity Probe: Detachable ultrasound probe with high sensitivity enables user to monitor foetus 16 weeks - Rechargeable Battery: In-built rechargeable Li-ion battery with USB adapter facilitates uninterrupted use of the device - Accuracy: Assures accurate FHR detection with clear sound - Dual Display Mode: FHR curve display mode and Big font display mode - Dual Audio Output: Provides enhanced quality foetal heart sounds with built-in loud speaker and headphone audio jack