The Dudao U9B is a in-ear Bluetooth earpiece that connects to any device with Bluetooth. It can connect to 2 devices simultaneously, allowing easy switching between them.

Bluetooth earphones have many benefits for their users, including the following:

1. Freedom of movement: You can move freely without having to hold your phone in your hand, allowing you to work, exercise, and engage in other activities or even drive while on a call.

2. Ease of use: Connecting Bluetooth earphones to your device is very simple and quick. Just activate the Bluetooth device on your device and connect your earphones. Moreover, most Bluetooth earphones have control buttons on the earphone itself, allowing the user to control their music or answer calls without needing to touch their device.

3. Time-saving: With Bluetooth handsfree, you can perform many activities without having to interrupt your call, allowing you to be more productive.

4. Long battery life: Bluetooth earphones usually have an integrated battery, which can provide several hours of continuous use on a single charge. This means you don't have to worry about charging your earphones frequently. See also: All Earbud earphones.

• Operating Time: 4hrs
• Standby: 40hrs