FM Launch Module Wireless Microphone Circuit Board Radio Transmitter + LCD MALL

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LCD display is more intuitive and accurate, and has very low power consumption and tiny noise interference. Fully digital control allow more convenient operation and makes this module more stable and durable. Unique PC audio emission, connected to the computer and you can instantly make your computer into an FM broadcasting station. High stability crystal oscillator provides reference signal source for FM signal carrier so the output frequency is more accurate. Special low noise audio operational amplifier provides MIC pre-amplifier. Storage frequency point and volume information when power is out, and automatic loading the frequency and volume when power is back on. Specifications: Input Voltage: DC 3V to 5V Current: 35mA Output Power: 100mW Emission Frequency: 87.0MHz to 108.0MHz Frequency Adjustment: 0.1MHz each time press button press, 1.0 MHz each time long press(press and hold) button Modulation Mode: Standard FM Channel: MIC (single channel), USB (stereo) Equivalent Noise: ≥30dB Emission Distance: 100 meters(for reference only, tested with 75cm antenna and PL-660 radio on open ground). Suitable for: FM radio microphone, computer audio emission (connect through USB) Module Size: 61.3 x 21.8 x 8mm / 2.41 x 0.85 x 0.31" Display Size: 25 x 16mm / 0.98 x 0.63" Instruction: 1, Use battery or step-down transformer type regulated power supply as power source. Switch-mode power supply without filter such as power bank, phone charger, switch voltage regulated DC-DC module can NOT be used because the high frequency conversion interference of switch-mode power supply will affect this module. 2, Press Mutting/Power supply button to mute/unmute, long press(press and hold) Mutting/Power supply button to turn on/off. 3, Press Emitting power button to switch from P1 to P4; a larger number indicated a higher power emitted. 4, ANT port can be used to connect to a FM antenna, e.g. a 75cm telescopic antenna. Antenna is not included. 5, If you need USB audio broadcast function, you need to plug in USB cable and connect module to a computer.Since a USB port of computer outputs 5V, the USB port can be a power supply for module.Computer will automatically install driver, and give a name to this module as "CD002" sound equipment. Enabled the "CD002" audio equipment in computer voice settings and computer audio can be emitted by means of FM through this module. 6, If you need this module MIC as a source of sound emission, simply unplug the USB, and module automatic turns to MIC channel as the source of FM. This module with high sensitivity electret microphone can be applied in the wireless microphone as needs.Adjust the emitting volume to achieve the best effect of sound pickup. 7, Charging Methods: Suggest to use 3.7V / 200mAH to 500mAH lithium battery to charge this module, or you can change it through the USB port(5V). Note: 1, Power supply voltage must NOT be more than 5V. 2, Do NOT touch the back of the module components when it is working, otherwise it will probably not work normally or burn out from a short circuit. Package Includes: 1 x Module (Antenna and USB cable are not included) ● Payment We accept PayPal only. We only ship item to your PayPal verified address. Payment must be received within 3 days from the date of purchase. Orders will be processed instantly and dispatched in same day normally, so we do NOT accept any Email/Message note after you place orders. ● Terms of sales1. Our listing price includes the value of goods,packaging cost,and export taxes,not including international import duties. 2. Import duties,taxes,and charges are not included in the item price or shipping fee. 3. The import duties are buyers' responsibility.Please check with your country's customs office determine what these additional costs will be prior to your purchase. 4. All disputes arising from the import duties will be submitted to eCRATER for solution. ● FeedbackWe will always do our up most to exceed your expectations in customer service, communication and dispatching of your orders. ● Contact us Any questions, pls. contact us via eCRATER message or email us.We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. kindly leave us a positive feedback and give us the Detailed Seller Rating with all "5 stars" in very area. Our aim is to provide Top Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.Thanks! On Nov-02-17 at 00:05:05 PDT, seller added the following information: