In general, you don’t have to give back the Pinger after the campaign. If you are not sure on how to dispose this device, please hand it over to one of the Cyclo Cycle Points, or send it back to Mobiel 21 (Vital Decosterstraat 67A/0101 | 3000 Leuven | BELGIUM) and we will take care to dispose it in an environmentally appropriate way and or to recycle it. Of course, we pay for the shipment!