if so, I'm done with mine and looking to sell it and would love a bumpie to get it. It's this one from healthchecksystems.com. Paid $120 - selling for $65. Bought it for my recent pregnancy. PM me if interested. Thanks and GL with your little beans!
https://www.healthchecksystems.com/hi_bebe_fetal_doppler_bt200.htm?this_selected_product_id=24770