– Display mode: 3.5inch IPS LCD (touch screen) – Power supply mode: USB-5V voltage, built-in 2500mAh lithium battery – Antenna type: SMA connector Package Included: – 1 x SDR601B – 1 x USB Cable – 1 x Antenna. Usually it costs about 30USD-50USD. Thanks for your understanding. If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days.