Taking your kid to the beach means worrying he or she will wander off when you're not looking. Enter sunscreen brand Nivea and FCB São Paolo with a campaign that basically provides you with a LoJack for your child. Titled "Sun Band," the combination print-and-mobile execution lets you pop a bracelet out of the magazine ad, wrap it around your child's arm, download an app, sync them and set a perimeter. If your kid wanders outside the safe zone, an alarm sounds, so you can go chasing after him or her. (Presumably, if you lose your phone, too, just whip our your tablet and Find My iPhone to recover your gadget, and then your child.) The ad ran in April in select copies of Veja Rio magazine sent to a group of subscribers. The bracelet is supposedly "humidity resistant" and reusable, though one has to wonder how much water it can really withstand. Anyways, it's a fun idea that effectively signals the brand's devotion to protecting your offspring. If you're still not satisfied with the mechanics, you can always do it the old-fashioned way and get a harness and a leash—or, you know, just stay close and pay attention to your child. Adweek responsive video player used on /video. brightcove.createExperiences(); CREDITS Client: Nivea Agency: FCB Brasil, São Paulo Executive Creative Directors: Joanna Monteiro and Max Geraldo Digital Creative Director: Pedro Gravena Creative: Victor Bustani, Raphael Leandro de Oliveira and Andre Bittar Digital Production: Geek Group Art Buyer: Tina Castro and Daniel Gonçalves Photographer: Lucio Cunha Image treatment: Boreal Graphic Production: Edgardo Pasotti e Diego Bischoff Graphic design and development: Companygraf Media: Alexandre Ugadin, Tiago Santos, Sergio Brotto, Rachid Antum and Caio Melo Project: Lia D’Amico Technology: Gerson Lupatini e Caio Mello Creative Technologist: Márcio Bueno Account: Mauro Silveira, Cristiane Pereira, Tania Muller, Mariana Mozzaquatro and Vitor Borragine Planners: Rapha Barreto e Lia Bertoni RTV: Viviane Guedes and Ricardo Magozo Production Company: Edit2 Director: Rodrigo Fleury Account production: Daniela Andreade Finishing production: Priscila Prado Animation: Rodrigo Resende e Eduardo Brandão Composition: Eduardo Brandão Editor: Rodrigo Resende Finishing Production: Edit 2 Audio: Satélite Audio Sound Producer: Equipe Satélite Audio Account: Fernanda Costa and Marina Castilho Client Supervisors: Tatiana Ponce, Patricia Picolo, Beatriz Vale, Lilian Cruz, Ana Borges, Katia Margy and Julia Sabbag