Advertised lifespans vary. In these listings you’ll see both a "2 Years" label and numeric hour figures such as 20,000 hours, 30,000 hours, and 50,000 hours.

Many models include built-in speakers (listed as standard or small Hi‑Fi drivers). Some entries highlight enhanced audio features (e.g., 360° sound or 3W Hi‑Fi drivers), and several note Bluetooth support or explicit compatibility with external speakers for better sound.