Battery Type: Main Part: Rechargeable Lithium Ion Polymer Battery (built-in) / Controller: AA Battery x4 (sold separately) Frequency: I/R Continuous Running Time: 4 min. Operable Distance: Normal: 6m / Follow-me: Approx. 0.3m-1.8m [Set Contents] -Main item -Controller -Instruction paper -Flight technique guide -Spare rotor -Propeller remover