The Bluetooth range between HALO Home devices is 100-feet line-of-site.

A smartphone/tablet to your nearest HALO Home product needs to be within 35-feet line-of-site.
Note - Since there are so many varying types of mobile devices there may be some variation in this range.

To control your lights from anywhere, simply install HALO Home's optional Bridge - this will also enable voice control with Alexa or Google if you need that.