frequency of wireless: 2.4ghz controlling distance: within 3m(under no special disturbance or obstacle condition) Controller/transmitter battery: 2*cr2032(non-rechargeable) shell material: abs waterproof grade: ipx-5 Reciever battery:3.7v, 850mah lithium battery(continous working 15h, plug directly power adaptor dc 5v 500mah to charge) charging time: 4.5h material: pcba Carton size: 50*50*40cm 20pcs/carton
