Size: Approx. W30mm Battery Type: Main Part: Lithium Ion Polymer Battery (built-in) / Transmitter: Alkaline AAA Battery x2 (sold separately) Frequency: 2.4GHz Continuous Flying Hour: Approx. 3min. Time Required for Charging: Approx. 40 min. Control-able Range: Approx. 15m (in closed space)