Here are 10 interesting facts about wireless earbuds:
1. True wireless earbuds use Bluetooth technology to connect to devices, typically operating on a 2.4 GHz frequency band.
2. The first true wireless earbuds were introduced in 2015 by Japanese company Onkyo, called the "Onkyo W800BT".
3. Wireless earbuds often have a primary (master) earbud that acts as a bridge between the audio source and the secondary earbud.
4. Many wireless earbuds offer active noise-cancellation (ANC) features, using microphones to detect and cancel out external noise.
5. The battery life of wireless earbuds has improved significantly, with some models offering up to 24 hours of playback on a single charge.
6. Apple's entry into the market with AirPods in 2016 set a new industry standard and spurred competition among other companies.
7. Wireless earbuds often come with a charging case that can recharge the earbuds multiple times before needing to be recharged itself.
8. Many wireless earbuds are water and sweat-resistant, making them suitable for use during exercise.
9. Advanced audio codecs like aptX and AAC are used in wireless earbuds to improve the fidelity of wireless audio.
10. Some wireless earbuds offer features like automatic pairing, touch controls, and the ability to pause music when removed from the ear.