LED tag 1.Holds up to 6 messages in memory 2.9 different speed and brightness levels 3.Programed by onboard three buttons

Key Specifications/Special Features:

Features:Hold up 6 messages in memory (up to 512 characters for first message, and  256 characters for others message)Letters, numbers and simple images are supported9 different speed and brightness Just manual program with three on-board buttons1pc of CR2032 battery, more than 20 hours continuous battery life Available in various colorsAccessory: specification and 1pc of CR2032Product size: 7 x 3.5cmUsage: fashion decoration, used as necklaceFashionableAttention:Keep it from water while in useAvoid its surface damage and keep it from fallingReset a battery while the light isn't enough for the brightness or failing to startAvoiding the function effected, keep your hand touching the plate of the electronic component while working

Detailed Pictures:

Backside:

After innovating:LED key ring

Package:

Programable LED flashing pet name tag for dog