{"product_id":"87-5mhz-108mhz-dual-channel-fm-radio-with-digital-display-diy-electronics-kit-with-type-c-port-suitable-for-audio-learning-etc","title":"87.5MHz–108MHz Dual-Channel FM Radio with Digital Display – DIY Electronics Kit with Type-C Port Suitable for audio learning etc","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSpeaker\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eGaqqee\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLow power consumption\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFrequency Range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e87.5MHz-108MHz\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDetails page\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e5W+5W stereo\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTQFP\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePower Supply Options\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eType-C 5V or 3.7V lithium battery (18650 flat-top battery)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eQuantity\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e2.5-5.5V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eProduct Features:\u003c\/p\u003e\u003cp\u003e1. The RDA5807M module offers high sensitivity and effectively blocks out noise to ensure clear sound quality\u003c\/p\u003e\u003cp\u003e2. Real-time display of frequency and volume; intuitive operation with a high-tech aesthetic at night\u003c\/p\u003e\u003cp\u003e3. Supports use whilst charging, automatically switching between lithium battery and Type-C power supply\u003c\/p\u003e\u003cp\u003e4. Built-in 3.3V buck-boost module ensures stable power supply and strong compatibility\u003c\/p\u003e\u003cp\u003e5. Adjustable angle for precise signal capture, preventing intermittent reception in weak signal areas\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProduct Description:\u003c\/p\u003e\u003cp\u003eThe main control chip is the STC15W408AS microcontroller; the FM radio module utilises the RDA5807M, with a frequency range of 87.5–108 MHz covering virtually all global bands, offering high sensitivity, low noise and strong anti-interference capabilities; The amplifier section utilises the AXS2031 digital amplifier chip (rather than the TDA2822), which features a simple circuit design, high output power, and the ability to maintain distortion-free performance even at voltages as low as 2.5V; the voltage regulation section employs a 3.3V buck-boost module, ensuring a stable 3.3V supply to the microcontroller and LED display for normal operation and display when the input voltage is between 2.5V and 5.5V. This is in contrast to the AMS1117 voltage regulator chip, where the microcontroller fails to operate correctly and the LED display malfunctions when the voltage drops below 3V.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProduct Specifications:\u003c\/p\u003e\u003cp\u003eSupply Voltage: 2.5–5.5V\u003c\/p\u003e\u003cp\u003ePower Supply Options: Type-C 5V or 3.7V lithium battery (18650 flat-top battery)\u003c\/p\u003e\u003cp\u003eRadio Band: FM\u003c\/p\u003e\u003cp\u003eFrequency Range: 87.5MHz–108MHz\u003c\/p\u003e\u003cp\u003eOutput Power: 5W + 5W stereo\u003c\/p\u003e\u003cp\u003eNote: Both power supply methods can be used simultaneously\u003c\/p\u003e\u003cp\u003eOmnidirectional Antenna: Adjustable in any direction for optimal reception\u003c\/p\u003e\u003cp\u003eAudio Output Interface: Compatible with headphones or a 3.5mm audio cable for connection to an amplifier\u003c\/p\u003e\u003cp\u003eType-C Power Interface: When powered via Type-C, the battery is charged simultaneously; charging automatically stops once the battery is fully charged\u003c\/p\u003e\u003cp\u003eVolume Up and Volume Down: Press briefly once to increase or decrease the volume by one level\u003c\/p\u003e\u003cp\u003eFrequency Up and Frequency Down: Press and hold to automatically scan for stations; press briefly to change the frequency by 0.1 MHz\u003c\/p\u003e\u003cp\u003eBlue LED display: Displays the current volume level or received frequency in real time\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eProduct Contents:\u003c\/p\u003e\u003cp\u003eRadio kit *1 (batteries not included)\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S735469fa38f54568a73cd7abd07bf2941.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S14040a4aa2ca4ae8b29d5d2e0e19d4a3v.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sc20e308baf7740ddac67487e8e3578afb.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sea54cb2f4efa48a5a5f6df2c992954313.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sdaa40855a78c4caea4f2c19172176246x.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6d4e5370c3a742c38b31f4c56347432fT.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S181e630182994577a305c2ef63ffafc21.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e","brand":"BuckUp Tactical","offers":[{"title":"With Casing","offer_id":52578998878495,"sku":"14:350852#With Casing","price":27.25,"currency_code":"USD","in_stock":true},{"title":"Without Casing","offer_id":52578998911263,"sku":"14:1202#Without Casing","price":22.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0018\/2983\/0703\/files\/S735469fa38f54568a73cd7abd07bf2941.webp?v=1779894835","url":"https:\/\/www.buckuptactical.com\/products\/87-5mhz-108mhz-dual-channel-fm-radio-with-digital-display-diy-electronics-kit-with-type-c-port-suitable-for-audio-learning-etc","provider":"BuckUp Tactical","version":"1.0","type":"link"}