Notes Keychain camera is one of the most amazing inventions till date. It not just allows you capture you personal stuff but also serves as a perfect spying tool. Carry easily in our pockets and don’t forget to capture all the important moments of your life. Another important feature of the Keychain camera is that it is provided with a powerful rechargeable battery. It allows you to continue using the device through charging the battery every 2 hours when it gets exhausted.