Please note: Only supports Android phones, Not for Support 5 frequencies: 125KHZ 13.56Mhz 250KHZ 375KHZ 500KHZ HID currently only supports ID frequency 125KHZ and does not support HID CLASS 13.56MHz Support reading and writing of IC 13.56Mhz cards and ID 125Khz cards Support NFC mobile phone and bracelet simulation Support IC/ID Replication Support Android phone and computer operation, support Win10-11 system Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color:Black Material:plastic Package Contents: 1 * Smart Card Reader 1 * Adapter(The color and appearance are random, and the designation is not accepted) 4 * CUID Keychain(The color and appearance are random, and the designation is not accepted) 1 * Data Cable (The color is random, and the designation is not accepted) 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.