加纳采购需求：超声波诊断系统、多普勒超声波、黑白超声波、兽医超声波、二维三维超声波、

I'm looking for a portable ultrasound machine with both linear and curved linear probes. The unit should ideally provide high-quality imaging for both 3D and 4D applications, as we're focusing on versatility in different medical settings. Could you please provide specifications, pricing details, and availability for this type of equipment? Additionally, if there are any recommended accessories or warranty options, I'd appreciate that info as well. Thank you!