Support read and write storage data files. Compatible with multiple systems: Android, HarmonyOS, Windows10/11. Simulation function: only one IC card position can be used for simulation and detection IC card reading and writing: support 13.56M HZ. ID card reading and writing: support 13.56M HZ Bluetooth connection: use Bluetooth function to connect. Mini program function: support mini program function, more convenient to use Data transmission: USB TYPE-C Battery specification: 3.7V/140MAH. Charging power: 5V/80MA Notes: 1. Battery life: This device uses the best quality 3.7V/140MAH battery, which is very durable It can be used for about 120 minutes after charging once. 2. Charging suggestions: Use a 5V constant voltage charger or a 5V constant voltage power bank, or use a computer USB or mobile phone OTG to charge. If it is a fast charging charger or a fast charging power bank, please use a regular original one. Using an irregular fast charging charger or a fast charging power bank may cause high voltage breakdown and damage the device! 3. Charging time: It is recommended to control it within 30 minutes. When it is fully charged or without battery, the 7th and 8th lights will flash at the same time. It will automatically shut down when it is out of power. Please unplug the power supply in time after it is fully charged. The charging prompt can be ignored when the card reader mode is working. 4. When storing: Do not put it together with conductive materials such as metal, there may be a risk of short circuit. The actual product may have color difference due to different light or display Color: Black Material: Plastic Package Contents: 1 * NFC tool 1 * Type-C adapter 1 * data cable(The colors of the adapter and data cable are random, and the color cannot be specified) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.