brand new and high quality Features: Use a 3.6v lithium battery Support USB charging Audio output supports headset 3.5MM Support 8 ohm speaker 1W output FM supports earphone antenna Antenna interface uses BNC The PCB retains the SI4735 package, users can replace the chip by themselves, and the software is compatible Specification: 1) FM, AM (MW and SW) and SSB (LSB and USB); 2) Audio bandwidth filter 0.5, 1, 1.2, 2.2, 3 and 4Khz; 3) 22 commercial and ham radio bands pre configured; 4) BFO Control; and 5) Frequency step switch (1, 5 and 10KHz); Band band[] = { {FM_BAND_TYPE, 8400, 10800, 10430, 10}, {LW_BAND_TYPE, 100, 510, 300, 1}, {MW_BAND_TYPE, 520, 1720, 810, 10}, {SW_BAND_TYPE, 1720, 3500, 1900, 1}, // 160 meters {SW_BAND_TYPE, 3500, 4500, 3700, 1}, // 80 meters {SW_BAND_TYPE, 4500, 5500, 4850, 5}, {SW_BAND_TYPE, 5500, 6300, 6000, 5}, {SW_BAND_TYPE, 6300, 7800, 7050, 5}, // 40 meters {SW_BAND_TYPE, 7800, 10000, 9600, 5}, {SW_BAND_TYPE, 10000, 11000, 10100, 1}, // 30 meters {SW_BAND_TYPE, 11000, 12500, 11940, 5}, {SW_BAND_TYPE, 12500, 13900, 13600, 5}, {SW_BAND_TYPE, 13900, 14500, 14270, 1}, // 20 meters {SW_BAND_TYPE, 14500, 15900, 15300, 5}, {SW_BAND_TYPE, 15900, 17900, 17600, 5}, {SW_BAND_TYPE, 17900, 18300, 18100, 1}, // 17 meters {SW_BAND_TYPE, 18300, 21900, 21200, 1}, // 15 mters {SW_BAND_TYPE, 21900, 26200, 24940, 1}, // 12 meters {SW_BAND_TYPE, 26200, 27900, 27500, 1}, // CB band (11 meters) {SW_BAND_TYPE, 27900, 30000, 28400, 1}}; // 10 meters Note:1.Please allow 5cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 1 x SI4732