Is Bluetooth 3.0 and 4.0 compatible?

Shopping

I have earphones and this is Bluetooth 3.0.

I bought a new cell phone this time, but I haven't received it yet, but it has Bluetooth 4.0.

Will Bluetooth 3.0 and Bluetooth 4.0 be compatible and connected?

2906 4 7 years ago

pu1. Bluetooth is currently available up to version 4.0, but the most commonly used version of Bluetooth device is 2.0, 2.1+EDR
With the latest Bluetooth machine, it wouldn't have ruined existing Bluetooth devices obsolete.

2017-11-13

pu2. You can use it even if the two products you want to connect through Bluetooth are different versions.
The performance will be adjusted to the lower version, so the speed will be adjusted to version 3.0.

2017-11-13

pu3. Bluetooth 3.0 has a transmission speed of 24Mbps and Bluetooth 4.0 is a technology that focuses on reducing power consumption and making the product size smaller, so the transmission speed is 1Mbps.
Usually, if the version is different, it fits the lower version, but Bluetooth 4.0 is lower than 3.0, so it might work at a faster speed

2017-11-13

pu4. Thank you for kindly telling me

2017-11-13

Shopping Please recommend a foundation that makes your skin look like a ceramic skin

Shopping Please recommend your favorite blusher

Shopping Can I choose different internet and iptv company?

Shopping Is it right that if I buy a paid application on Google Play Store, there is a separate tax?

Shopping Can leather bags be washed?

newest Can I reuse the USIM I used to change my phone device?

newest Shu Uemura lip 50%

newest Learning drums for beginners