I bought this three months ago and have used it about five times. It's very convenient when using my smartphone camera. The hold is good. I used it with an iPhone. You can take photos with one hand, just like a single-lens reflex camera. The Bluetooth connection works perfectly! It's a good product. The smartphone is not included. The Bluetooth remote control is also rechargeable, which is convenient. Note: The fourth photo explains the extension functions. Various extensions are possible.