Cal308Win Laser Training Cartridge With A Spare End Cap For Dry Fire Trainer Practice, Laser Bullet Target 

• Visible Laser: This Laser Target Bright red Class IIIA (<5mW) laser cartridge 632 - 650nm, visible up to 100 meters in low light. and it also can easily & quickly Zeroing your gun for training.
• Convenient Training- Our Laser Bullet Targer compatible with most free mobile app for iPhone and Android phones, most training systems and emulators.Training anywhere, Training anytime.
• Save Money & Time - Each set of batteries can support more than 3000 shooting exercises to maintain your muscle memory, and saving time and reducing cartridges waste. (3 sets of batteries included).
• High Quality Material- Lyska laser training cartridge made of Sturdy brass & High-precision electronic equipment, 2 Rubber O-Rings and Rubber Snap Cap.(Rubber Material can avoid any potential dry-fire damage).
• What was included- Comes with 3 Sets of Batteries( 9 * LR626 batteries), 2 Back Caps and 4 O-Rings. More than 3000 Shots per set of batteries.One year after-sales service of sending replacement and 30-days money back.