Made in China from Careshine Medical Co.，Ltd Features for fetal doppler:∵ Easy and convenient operation∵ High-fidelity， crystal clear sound∵ Earphone and speaker are feasible∵ High sensitivity doppler probe∵ Low ultrasound dosage∵ Display with backlight LCD∵ Unique ergonomic designTechnical Specification for fetal doppler:∵ Ultrasound frequency: 3MHz∵ Ultrasound intensity: <10mW/cm2∵ Power supply: Alkalinity battery∵ Display: 45mm≠25mm LCD∵ FHR Measuring range: 50~240bpm∵ FHR resolution: 1bpm∵ FHR accuracy: ÷1bpm∵ Power consumption: <1W∵ Dimension :135mm ≠95mm ≠35mm∵ Weight:500gConfiguration:∵ Main body∵ 3MHz probe Note: No Gel