*Complied with environmental criteria
*no chemicals        
*chases moles,voles,gophers and burrowing rodents
*runs on solar energy,24h-autonomy with battery
*weatherproof and UV-resistant

specifications:
*range:about 800 Square metre
*frenquency:400-1000hz
*dimensions:φ155*438.5mm  
*power:0.2w
*rechargeale battery(incl.):NI-CD,1.2v/800mah