Purchased 1 on eBay for $35 (sonoline b) & I am so in love with it & baby 😁😁😁 I can hear baby's movements now as well as heart beat. I'm just so happy because I'm a first time mom who has been stressed out a lot and to hear a steady heartbeat has completely eased my mind. Shipping was free. Comes with gel & prob as stated. Bought new not used. The box even had a sticker seal on it and all of its contents were wrapped in plastic. I highly recommend this product and that eBay seller for fast shipping and being honest. ❤️❤️❤️