Special feature: lights up for safety in the dark. Three light modes: steady, flashing, pulsing. Water resistant. Slot for key so it is not tied to your shoe or bouncing in your pocket. Ample band length to fit any arm. Fits most smart phones up to 6″ screen. Touch screen functionality. For first time use, pull plastic tab near battery. Complies with Prop 65. 8 7/8″ W x 7 5/8″ H
Setup charge: $50
Packaging: Bulk. Individually Polybagged.