Google is expanding its Google Glass Explorers program, rolled out in spring 2013, by encouraging the initial 10,000 beta testers to bring in their friends. 

All Explorers have just 14 days to invite their friends to partake in the program and buy the Glass—they all must be the U.S. residents. So far, Google doesn’t share how much the Glass will cost for the invited friends (whether it will be a standard price of $1,500 or less). This will be disclosed to Explorers, as Google will convene them soon.

Additionally, the company is inviting the current public testers to swap the Glass they’ve bought before October 28, 2013 for an upgraded version with the lately improved hardware. The tweaks will allow to work with future lines of shades and prescription frames, the blogpost says. Moreover, the updated Google Glass will feature a mono earbud.

Another hot Google-related and much discussed topic is an Android-based  smartwatch that the company is about to launch soon, according to The Wall Street Journal’s report. The upcoming on-wrist gadget will be integrated with Google Now—the digital piece that will work as an assistant to answer questions, make recommendations and also predict what information users may need by analyzing what they are doing. “Google has also been working to reduce power consumption on the smartwatch so it won’t require frequent battery charges,” writes the source.