What is the difference between BPR1, BPR1S and BPR1S Plus?

The difference between BPR1 VS BPR1S VS BPR1S Plus:

1. The appearance is different, as shown in the picture above.

2. Different functions：

-BPR1S and BPR1S Plus with Gyroscope sensing, BPR1 without Gyroscope

-BPR1S and BPR1S Plus support Voice Function, BPR1 does not support Voice Control

-BPR1S Plus support 2.4G connection BPR1 and BPR1S without 2.4G connection function

Similarities between BPR1 & BPR1S & BPR1S Plus:

-BPR1 & BPR1S & BPR1S Plus Support Bluetooth connection

-BPR1 & BPR1S & BPR1S Plus support IR Learning (All buttons)