There is a small speaker in Apple SMS.

2. A small speaker means a speaker.

Wechat is a free application launched by Tencent on 201110, which provides instant messaging service for intelligent terminals. It was created by the product team of Tencent Guangzhou R&D Center led by Zhang Xiaolong. Wechat supports fast sending of free voice messages, videos, pictures and texts across communication operators and operating system platforms. At the same time, you can also share streaming media content and location-based social plug-ins, and use service plug-ins such as "shake", "drift bottle", "circle of friends", "public platform" and "voice notepad".