The Bat 100 from Fullspeed is an amazing little brushless micro quad which uses 0705 15000kV brushless motors swinging 55mm props, it measures 100mm from corner to corner and runs using a single cell (1S) LiPo battery.
This thing is wicked fast considering the single cell voltage, and while not exactly punchy compared to 2 or 3S micro models, it still has a good amount of power to recover after flips and tricks, the main reason for this is because it weighs the same as a packet of crisps/chips! Without the battery and receiver the Bat weighs in at just 30g, and all up (including battery and RX) its just under 40g.
The camera is an all-in-one and is fitted with a 25mW VTX (video transmitter) which will give you a stable image out to 100m or more without any obstacles blocking the signal. If you have a 5" racing quad and are looking for something that you can rip around the garden without the worry of killing your neighbors cat this is a great addition to any fleet. I would also say that this is a great natural progression from a tinywhoop or other brushed micro.