100% brand new and high quality Features: Made of high quality material, sturdy, durable. There are modular interface like UARTSPISDIOI2CLED PWMTV PWMI2SIRGPIO and so on. WIFI function fit for standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC. The Bluetooth-compatible meets v4.2BR/EDR and BLE standard, while the radio frequency with -97dBm sensitivity NZIF receiver Class-1,Class-2 and Class-3 emitter AFH. With security mechanism like WPA/WPA2/WPA2-Enterprise/WPS and encryption type AES/RSA/ECC/SHA, protecting your privacy. Specification: Material: Fiber glass fabric + Electronic component Size: 74.8 x 29mm/2.94 x 1.14in Power supply: USB 5V/1A Charging current: 500mA Battery: 3.7V lithium battery Working voltage: 2.7V-3.6V Working current: app.70mA Sleep current: app.300uA Working temperature range: -40 - +85/-40 - +185 JST Connector: 2Pin 1.25mm Communication distance: 300m Color: As picture shown Quantity: 1 Set Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x T-Call V1.3 1 x Power Cord 2 x Pin Header