Thanks for your question.
"Bumblebee Bats are the world's smallest bat, in fact they are the world's smallest mammal. They are between 29 and 33 mm (1.1 - 1.3 inches) in length, they have no tail, they have a wingspan of approximately 170 mm (6.7 inches) and they weigh 2 g (0.07 oz).
They have reddish/brown or grey upper parts with their underside being pale in colour. They have dark coloured relatively wide wings with long tips that enables them to hover."
For more information go to
1)www.theanimalfiles.com -choose "mammals" then "bats"
or
2) www.wild-facts.com/tag/bumblebee-bat/
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