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• 用于心脏病诊断的双头银色耳膜，直径48mm的膜片对声音采集敏感。 • 小而深的锥形耳廓用于听诊刺耳的声音或轻柔的低频声音。 • 不锈钢听筒，良好的声音传导。 • “A”形管确保最佳的声音传导。 • 粗管具有出色的抗环境干扰能力。
包括：一对金属耳塞、一对软耳塞和一个可更换膜。
Pierre, 法国
12/01/2025
The communication, delivery, and information were satisfactory. The microscope is easy to use and produces good results.
Natalia, 意大利
07/14/2025
Overall, we are happy with the purchase and the service of the seller. The seller's responsiveness was remarkable.
Walter, 加拿大
05/19/2022
Extremely knowledgeable and helpful!
$61 USD
值得信赖的卖家
