🔊उच्च वॉल्यूम स्पीकरA speaker at high volume. Means loud, party and volume up. Use it for parties and "turn it up".
🪔दीपकA diya lamp. Means Diwali, light and celebration. Use it for Diwali greetings and festivals of light.
👌ठीक का हाथ चिह्नAn OK hand. Conveys "okay", approval — but in some cultures it can be an offensive gesture, so context matters.