This animal tag reader is your ideal choice, with USB charging, charging time only needs 4-5 hours. It supports reading 134.2KHZ frequency and can store up to 3000 data. It is small in size, easy to carry, easy to operate, and responsive. Features: Efficient storage: It can store up to 3000 data to meet your various needs. Convenient charging: USB charging, charging time only needs 4-5 hours, convenient and fast. Easy to carry: Small size, easy to carry, you can easily use it wherever you are. Sensitive reading: Supports reading 134.2KHZ frequency, responsive and easy to operate. Bright display: Backlit screen design, you can see clearly even indoors. Specifications: Battery Type: Button Battery 800mAh Charging Method: USB Charging Voltage: 5v Charging Time: 4-5 hours Reading Distance: 13cm Working Frequency: 134.2 KHz Reading Standard: 11784/5 FDX- B and ID64 Operating Language: English Size: 12.3x6x1.9cm / 4.8x2.4x0.7in Weight: 70g / 0.15lbs Package size: 15.2x8.7x3.9cm / 6x3.4x1.5in Gross Package weight: 119g / 0.26lbs Package List: 1x Animal tag reader 1x USB charging cable 1x User manual