Sonoline B digital Doppler

I ordered this Doppler today from bellybeats (used them in my previous pregnancy and also gifted to a friend). This one is the digital one so its better than the one I got with her 5 years ago and it's 2 MHz instead of the usual 3 MHz. That being said, has anyone had success getting a heartbeat around 9 weeks with this specific brand? Google is giving mixed results. I'm 5'2 and 114 lbs if that matters. I should get it sometime this week but just wondering if I should wait to use it or if the odds are in my favor for success! Thanks ladies ❤️