... the youth playing catch dragonflies tong qu. 4.5-CHANNEL RC HELICOPTER (DRAGONFLY)(Replaceable battery) The aircraft weight: ... cmColor box specifications: 23 * 35.2 * 17.5 cmNote: 1, simulation modelling of a dragonfly, dragonfly ... to the youth playing catch dragonflies tong qu.3, is suitable for the special gift giving ... minutes, charging time is 40 minutes. 9, 3.7 V, polymer lithium battery 10 300 mah ...