In-Ear Bluetooth Headphones – Frequency 20 Hz – 20 kHz – With built-in Microphone – JBL T110BT offers a wireless solution for daily use, along with the ability to make or receive hands-free calls and a battery life of 6 hours. These headphones charge quickly in 2 hours, are available in 6 different colors, feature a flat cable that doesn’t tangle, and are light enough to wear for hours. With magnets that ensure the earbuds don’t dangle when not in use, a tangle-free cable, and the comfort of ergonomic earbuds and collar design, JBL T110BT headphones can become an essential part of your everyday music enjoyment.