Feature: 1. 【Scientific & Reasonable Layout】: Simple, fun and versatile QRP SSB HF transceiver with embedded DSP and SDR functions. EER Class-E driven SSB transmit-stage. Adopting KDS high-precise TCXO, the frequency accuracy and stability surpass similar products. Compact size with rich interfaces and scientific printed circuit board layout with high-frequency circuit design principles to ensure superior performance. Printed circuit board reserve all kinds of pads needed for upgrading, which can be used as a template for DIY upgrading and learning. 2. 【Multi-band Support & High Audio Performance】: Full mode HF shortwave transceiver, covering eight bands of 80m/60m/40m/30m/20m/17m/15m/10m with high transmitting efficiency. Built-in speakers with significantly improved sound quality and increased volumes provide a more pleasing audio experience. 3. 【Comprehensive Functions & Software Flexibility】: Supports a variety of communication modes, including SSB, CW, AM, and Frequency Modulation, as well as DSP filtering and functions, such as AGC, NR, ATT, TX, and VOX, to provide a professional communication experience. Open-source firmware based on IDE allows users to customize functions and promote community development through sharing and contribution. 4. 【Combined Digital & Analogue Technology】: It combines an all-digital SSB emitter with a software-based SDR receiver stage for precise frequency control and signal processing. Provides independently switchable analogue attenuators to improve reception performance in different scenarios. Supports the Computers Aided Tranmission protocol, enhancing interoperability with other devices. 5. 【User Friendly Design】: The headphone jack, microphone jack, and power button are moved to the front panel, making it more intuitive and convenient to connect headphones and operate power. The button layout has been adjusted to the underside of the LCD screen to provide a more spacious toucharea, improving the comfort and touching experience of the buttons. 6. 【Superior Portability】: Powered by the carried external 13.8v powersupply, it can achieve 8 gears of 3-5W power. It also reserves the necessary to-220-packpad for potential upgrades. Built-in 4000mAh rechargeable lithium battery, this device ensures a reliable and long-lasting powersupply for extended periods of use without the need for frequent recharging. Perfect for various operation scenarios. Specification: Name: SDR Transceiver Material: metal Battery: 1 * biult-in 4000mAh battery (included) Radio frequency output: 10W maximum at 13.8V exit direct current in Frequency ranges: 3.5-30MHz Antenna/connector: 50ohms/SO-239 Full mode support: usb, lsb, cw, am, frequency modulation Bands: 80m/60m/40m/30m/20m/17m/15m/10m Emission efficiency: 80m/60m/40m/30m/20m efficiency is higher than 80%, 17m efficiency is higher than 70%, 15m/10m efficiency is higher than 60% Rich interfaces: Computers Aided Tranmission, PTT OUT, MIC, microphone, BNC antenna interface Premium parts: 100 V C0G/NP0 capacitors, magnetic latching relays, Operational Amplifier chip, built-in speaker with cavity All-Mode support: USB, LSB, CW, AM, Frequency ModulationDSP filters: 4000, 2500, 1700, 500, 200, 100, 50 Hz passband DSP features: Automatic Gain Control (AGC), Noise-reduction (NR), Voice-triggered Xmit (VOX), RX Attenuators (ATT), TX noise gate, TX drive control, Volumes control, dBm/S-meter SSB opposite side-band/cxr suppression transmit: better than -45dBc, IMD3 (two-tone) -33dBc; Receive: better than -50dBc Noise floor MDS: -135 dBm at 28MHz (in 200Hz BW) Front-end selectivity: steep -45dB/decade roll-off +/-2kHz from tuned-frequency Blocking dynamic ranges: 20kHz offset 123dB, 2kHz offset 78dB CW decoder, Straight/Iambic-A/B keyer Item size: 155 * 90 * 40mm / 6.10 * 3.54 * 1.57in Item weight: 425g / 0.94lb Package size: 170 * 128 * 80mm / 6.69 * 5.04 * 3.15in Package weight: 510g / 1.12lb Package List: Packing List:1 * SDR Transceiver1 * Microphone1 * Adapter