<p>1. Built-In High-Frequency Antenna, Corresponding To The Antenna Depth, Eliminates Blind Spots, And Reads The Entire Data Card Without Interruption.</p> <p>2. Increase The Frequency Of Keystrokes, The Size Of The Card Can Hold Everything.</p> <p>3. The Data Analysis Is Completely Stable And The Error Rate Is Low.</p> <p>4. The Low-Frequency Antenna Improves The Signal-To-Noise Ratio, The Recognition Speed Is Higher, And The Mobile Design Meets Various Needs.</p> <p>5. No Antenna Interface, No Need To Connect, Easy To Damage.</p> <p>It Is Simple And Convenient To Cancel The Lithium Battery. (In Offline Mode, You Can Use The Power Bank)</p> <p>Except That It Has Nothing To Do With The Original Relay, It Has Low Cost, Light Weight And Convenient Transportation.</p> <p>Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use.</p> <p>Accessories random color and appearance,The color of the coil is random, No specification accepted</p> <p>Color: Black</p> <p>Material: PCB</p> <p>Specifications: 5X T5577 Keychain</p> <p>Package Contents:</p> <p>1 x RFID Card Reader Kit</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>