The JBL SoundBoost 2 Moto Mod makes the Moto Z2 Play downright thick. I'd laid hands on a few Moto Mods before and I'd even used the Moto Z for a while when it was first revealed. But until now, I'd not been convinced that Motorola's implementation of a modular smartphone accessory system was worth the effort. With the release of the second wave of Moto Mods with the Moto Z2 and the Moto Z2 Play, I've seen the light. And it comes from the speaker masters at JBL.