8 tracks cover 80m/60m/40m/30m/20m/17m/15m/10m. Excellent PCB layout line with high-frequency circuit design principles to excellent performance. Whether using built-in battery or external 13.8v power supply, 8 gears of 3-5w power can be achieved, and necessary sot-223 and to-220 pack pads are reserved for upgrade. High transmission efficiency, 80m/60m/40m/30m/20m efficiency 80%, 17m efficiency 70%, 15m/10m efficiency 60%. KDS high-precision tcxo , frequency accuracy 1ppm, frequency stability 0.5ppm. Ultra-small size: 88x39x124mm (excluding protruding parts). Rich interfaces (cat,ptt out,mic/key,k-head mic). All LPF parts use 100v c0g/np0 capacitors. Use genuine magnetic latching relays. Use lower noise op amp chips than lm4562. Built-in speaker with cavity. BNC antenna interface. Move the headphone and power button/microphone jacks to the front panel for easy connection of headphones and power buttons. Move the buttons to the bottom of the LCD screen for a larger touch area and a more comfortable button experience. Upgrade the built-in speaker effect,double the sound! The PCB reserves the pads required for upgrades,ready to use out of ,and can be used as a template for DIY upgrade learning Quickly change the qrp cw frequency. Support cw sidetone volume adjustment. Support cw sidetone adjustment. This is a shortwave qrp ssb/cw transceiver. The ultra-small size is easy to carry for outdoor use (with or without battery,built-in 4000mAh lithium battery) 1602n LCD screen,built-in speaker,support connecting to a computer to use FT8,JS8,FT4 and other mode software to control digital,support cw automatic decoding. Plug Type:US Plug,it applies to Canada,India,Mexico,Thailand,Taiwan,the ,the Philippines and so on. voltage: AC110V Colour:Black Material:Metal Package Contents: 1 * Shortwave transceiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.