As builds become smaller and the innovation surrounding brushed and brushless micro quads accelerates, the need for a high-quality VTx increases. TBS has built the smallest VTx possible, focusing purely on size! Sporting the usual Unify Pro pedigree, a newly-revised u.FL connector and the industry-standard Smart Audio support. You will be blown away with the performance in terms of range, signal clarity and signal spacing.
This Vtx operates on 4.5 - 5V and consumes 300mA at 50 mW output. If you want to use the Nano on a 1s build you will need a voltage multiplier to bring the 1s voltage up to 4.5-5V. Another option is to use the TBS Tiny Camera with the Nano. The Tiny Camera was designed to work with the Nano and has a built in voltage multiplier that outputs 5V.
Peruse the user manual here.