K Kirti 🎓 Tutor II ⭐ 10.45K Points 📊 Science Q. Which of the following device is fully duplex? (A) Walky-talky (B) Radio (C) Mobile phone (D) Loud speaker 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (C) Mobile phone You must be Logged in to update hint/solution 💬 Discussion 💬 Comment