Ever see a cool guy or girl on the street with headphones -- and no wires trailing?

They're called Bluetooth headphones, and they're your new sign of being ahead of the sound curve. Bluetooth - the English name derived from the 10th century Scandinavian king Harald Bluetooth - is a wireless short-range communication technology standard used by millions of products we use every day, such as smartphones, laptops and portable speakers ) exists in this standard. Products with Bluetooth technology can wirelessly connect to any other Bluetooth-enabled device nearby.

Should you buy bluetooth headphones? How to decide? If yes, which kind? Here are 5 quick guides -

1. Usage: If you are driving and suddenly your phone calls, but you can't answer the call, you may need a Bluetooth headset, such as New Bee Bluetooth Earpiece V5.0, which is very suitable for use while driving. For example, the Bluetooth Headphones Neckband 20Hrs Playtime V5.0, this headset is suitable for jogging. If you mainly listen to music, buy bluetooth earphones because they sound better. Look for one with controls for music playback, such as Wireless Earbuds – Bluetooth, these headphones are very water resistant, IPX5 rated, and they sound great.

2。Battery life: Bluetooth earphones need to be charged, so ask about battery life before buying. Generally speaking, the larger the earphones, the better the battery life, although smaller earphones usually look better and are more convenient. Ordinary earphones can work up to 4-5 hours on a single charge, and the standby time of earphones varies from less than a week to more than two weeks. The Kissral Wireless Sport Earbud 8 Hours Talking Time HD Microphone Bluetooth Headset stands out with its 8 hours of battery life.

3. Mono, Stereo and HD Sound: Mono earphones have a single earpiece that provides sound to one ear with acceptable sound quality for calls and other basic functions. However, if you want to use them to listen to music or play video games, consider buying headphones with two earpieces and stereo, which offer good sound quality at an affordable price. High-definition headphones (like stereo headphones) that run at 16 KHz instead of 8 KHz provide better sound quality and a truly immersive experience.

4. Multi-point pairing: Multi-point pairing refers to connecting your headset to multiple Bluetooth compatible devices at the same time, such as your mobile phone, laptop or tablet. The Syska Multipoint H904, Jabra Voice Wave, and Plantronics VOYAGER 510S are some great multipoint pairing Bluetooth headsets.

5. Voice command functionality: The popularity of voice command functionality is growing rapidly. Bluetooth headsets allow pairing with devices, checking battery status, answering calls, and rejecting calls. Some Bluetooth headsets allow users to access voice commands that come with a smartphone, tablet, or other Bluetooth paired device. This makes them easier to use when cooking, driving, exercising and working.