2 PACK Wireless Camera Remote Control Shutter Features: Wireless Control: The Bluetooth shutter can operate up to 30 feet (10m), which can help you get the lens you need from the angle you need when you need it. Take beautiful moments and photos. Long Battery Life: Use standard button batteries, no need to recharge. With the lowest power consumption inherent in the remote control. You can use it for a longer time. Portable Size: The size that you can carry around. It is also very suitable as a small gift for friends and family. Put it in your pocket and use it at any time. How to Use： Step 1: Turn on the button on the right side of the Shutter, the state is ON. Step 2: Active BT function on the cell phone, find the Shutter (AB SHUTTER), click and connect. Step 3: Turn on the phone camera and press the button on the Shutter to leave a beautiful moment.