For Red and Green Pulsed Lasers: Turning on the laser level's pulse mode allows the laser receiver to detect red and green pulsed laser in low-light conditions at distances of up to 50 meters. Long Battery Life: The receiver has a built-in 1000mAh battery that provides you with approximately 20 hours of operating time. In addition, there is an auto shut-off feature that powers down the unit after about 10 minutes of inactivity to extend battery life. Double Horizontal Bubble Design: This product is also equipped with horizontal on the front and top for more accurate leveling. Outdoor/Remote Use: When the laser is working outdoors or at a distance, the human eye can not clearly observe the laser signal, using a laser receiver can help you quickly and accurately detect the laser signal. Ease of Use: With its compact and comfortable grip design, the laser level receiver is highly portable and easy to handle. It also comes with a convenient clamp holder, which allows you to securely attach it to various surfaces, poles, or tripods.