Electrical Snap-On Trigger Handle. Requires TC5X rugged boot (sold separately. Wrist Tether and rugged boot sold separately. The TC5X mechanical trigger handle accessory provides users with significant flexibility as they adapt the TC5X device to different operations within their retail environment. The TC5X trigger handle accessory is considered a consumable item which may need to be replaced during the life of a TC5X device. Therefore, Zebra highly recommends the purchase of a Zebra trigger handle service plan.