②J梅�E 13.0 SPECIFICATIONS 。 DR NE Model: HS720E Weight 495g/ I 7.46oz Max Flight Time: 23 minutes ( pe「 battery) 。 。 Operating Tempe 「atu「e Range: 32 to 104 F Size: I 77 x I 04 x 58 mm (Folded) 。 337 x 240 x 58 mm (Unfolded) DR NE BATTERY Capacity: 2800 mAh Voltage: 7. 4 V Ba吐ery Type: Li-Po Energy: 20. 7 2 Wh 。 ° 。 Cha 「ging Temperature Range: 4 I to I 04 F (5 to 40℃j Charging Time: about 5 hours TRANSMITTER Ope「ating Frequency: 2.400 2.