Mice & Trackballs FAQ Q: How many devices can the mouse be connected to at the same time? A: Bluetooth mode (1 devices)2.4G USB mode (1 device). Q: How to connect and switch bluetooth connection or usb receiver? Turn on the back switch to "ON". Pre the "red" button on the back, the blue light flashes for the Bluetooth mode, and the green light flashes for the USB receiver. For Bluetooth mode, find "BT Mouse 5.2 or 3.0" in the Bluetooth list and connect it. Receiver mode, insert the USB into the USB port of the computer, wait for about 15 seconds, and then it can be used.(Note: If BT Mouse is not displayed in Bluetooth mode, please pre and hold the "red" button on the back for 3-5 seconds until BT Mouse is displayed.) Use the Bluetooth & USB receiver link at the same time, and pre the "red" button on the back to switch freely between the two modes. Q: What should I pay attention to when using a mouse in iOS system? A: Upgrade IOS system above 13.0. M7 Ergonomic wirele mouse Bluetooth wirele dual-mode design, ergonomic design. Ergonomic inner arc groove design Let the hand and the mouse fit better, and you will not feel tired after long-term use. Dual mode connection Using stable 2.4GHz wirele technology & Bluetooth wirele connection, adapt to various usage scenarios. Suitable for multiple operating systems. Compatible with all iOS/Android/Microsoft smartphones/tablets/laptops. Reliable wirele transmiion. Advanced wirele transmiion technology, encrypted connection with devices, reliable wirele connection with almost no interference & frame drop. 1600 DPI adjustment 800-1200-1600 three-stage DPI switching, accurate positioning without frame drop, sensitive response and smooth operation. Advanced Optical Sensor Advanced optical sensor, suitable for various scenes, no matter with or without mouse pad, rough, uneven surface. Excellent battery life. High-efficiency energy-saving engineering design allows the battery to have an excellent continuous use time.