10 PCS 4.5 x 3.0mm Female to 4.0 x 1.7mm Male Plug Elbow Adapter Connector Earphone & Headset The metal clip can be

The metal clip can be fixed on any flat surface with a thickness less than 2

Detection sensitivity: Detection of one yuan coin

it can be detected

Aspherical resin lens: thinner and more transparent than spherical lens

press and hold the button for 3 seconds to save and exit or automatically save and exit without operation for 10 seconds

10 PCS 4.5 x 3.0mm Female to 4.0 x 1.7mm Male Plug Elbow Adapter Connector Earphone & Headset The metal clip can be1. 4. 5 x 3. 0mm female to 4. 0 x 1. 7mm male plug notebook adapter connector 2. Type: DC converter plug 3. Small size and easy to carry 4. Product material: PC + metal 5. Product size: about 30x33mm