Handheld design for comfort and quality. Simple 2-button operation. Works standalone, no PC connection needed. Features LED lights and buzzer indicators. Reading range: 0-6cm. Compatible with 125KHz RFID cards (T5577, 5200, EM4305, etc.). xxFunctions:xx - Read: 125KHz ID cards (EM4100, TK4100, etc.). - Write: 5200 or EM4305 or T5577 or 8310 or 8268 cards. - Built-in LED, buzzer, and antenna. - Power: 3V (2 AAA batteries, not included). - Durability: 20,000 read or write cycles. xxNote:xx - Tested before shipping. Unsupported cards may not read or write. - Minor appearance or color variations may occur (no impact on function). xxKit includes:xx 1 x 125KHz RFID Reader and 3 Keyfobs and 2 Cards (Blue, Plastic). xxDisclaimer:xx - Slight color variations due to lighting or screen settings. - Size tolerance: ��1-3cm. - Package contents only as listed.