New Delhi, Dec. 2 -- Bluetooth speakers have become a staple in many homes, but older models often get pushed aside as new designs arrive with better sound, longer battery life, and smart features. Instead of letting these devices gather dust or tossing them during a spring clean, you can give them a second life. Even speakers that seem outdated or underpowered can be repurposed in creative and practical ways, from enhancing your TV or projector audio to acting as a sleep aid or smart home alert system. With minimal effort and cost, these forgotten gadgets can still be surprisingly useful.

Many older or smaller TVs lack high-quality sound. Connecting a Bluetooth speaker can instantly improve your audio experience. If your TV supports Blu...