product paramerers frequency range 136-174MHZ , 400-480MHZ Working temperature -20℃ -+50℃ Channels quantity 250 Working voltage DC7.4V Output power 5W Battery capacity 7.4V---2600MA/H Modulation system 6KΦF3E(Wide)/1kΦf3E(Narrow) Earphone jack K Weight 500g Size 110mm(H)*63mm(W)*35mm(D)
M7 accessories display 1 x box 1 x host 1 x battery 1 x Back clip 1 x antenna 1 x adapter 1 x charging stand 1 x rope