• Suitable for Pedometers, supports various Smart Phones(Width less than 3.4 inches).
• Adjustable swing amplitude, it can be shaked automatically and you will earn more than 7,000 steps per hour easily!
• New Mute design with stainless Steel Bearings, you won't be annoyed by noise.Smooth plastic material won't scratch your mobile phone.
• No magnet interference on phone. You can easy to turn on and turn off the shaker by ON/OFF switch.
• Please use regular power adapter (5V/2A or 5V/1A)