Feature 1 Full Band Radio: Supports FM and AM (MW and SW), and SSB (LSB and USB) as well, this radio is very reliable. 2 Practical Using: Comes with 0.5, 1, 1.2, 2.2, 3 and 4khz audio bandwidth filters, works with good stability. 3 Good Presetting: The full band radio also has 22 pre configured commercial radio and ham frequency bands. 4 Better Control: With bfo control and frequency step switch at 1.5 and 10kHz, the operation is very simple. 5 Other Function: Power down storage function simplifies the working, while the USB port enables quick charging.Item Type: RadioBattery: Use 3.6v lithium battery 600mAH (shipped with built in battery). Charging: Type C USB charging. Audio Output: Supports audio output, supports 3.5mm earphone. Speaker: Support 8 ohm speaker 1w. Antenna Interface: Use SMA antenna interface. Function: Upgrade power down storage function. Package List1 x Radio1 x USB Data Cable1 x AntennaNotePCB retains the si4735 package, users can replace the chip by themselves, and the software is compatible.