Sonoff R2: It was really an extremely useful experience dealing with Hobbytronics PK. I ordered Sonoff R2 and after placing my requirement did receive it within 48 hours, as per deadline given by them. Sonoff is hardly around 2x4 inch. Price and function wise its upto the mark. I Just connected two of my lights with the switch and its performance on the wifi is exemplary. Highly recommends for the future purchaser. Only I noticed that we cant put off Privacy, which is the pre-requisite of Location. Sonoff was provided with the bubble wrap. Very importantly want to put on record that before and after sale advice/service provided by them cannot be ignored, as there attitude are highly professional. Wish them a happy survival in the market.