📞ống nghe điện thoại bànA telephone receiver. Means calls, hotlines and retro phones. Use it for "call me" moments and customer service.
🥼áo phòng thí nghiệmA lab coat. Means science, medicine and experiments. Use it for research, doctors and "back to the lab". Alternative: 🧪 (test tube), 🔬 (microscope).