A raft of voice-based hardware devices have emerged, aimed at companionship, productivity, or personal growth. These include card-shaped devices from Plaud and Pocket ; pendants from Friend , Limitless , and Taya ; and a wristband from Bee , which is now part of Amazon. Now, two former Meta employees who worked on interface design have launched Sandbar , a startup that has created a ring called Stream for similar purposes. The company calls the ring “a mouse for voice” because it can take notes,