{"product_id":"kcx-emiter-bluetooth-5-3-audio-transmitter-receiver-stereo-module","title":"KCX_EMITER Bluetooth 5.3 Stereo Audio Transmitter Receiver Module","description":"\u003ch2\u003eKCX_EMITER Bluetooth 5.3 Stereo Audio Transmitter \u0026amp; Receiver Module\u003c\/h2\u003e\n\u003cp\u003eUpgrade your wireless audio projects with the \u003cstrong\u003eKCX_EMITER Bluetooth 5.3 Audio Transmitter Module\u003c\/strong\u003e — a compact, high-performance GFSK transceiver board designed for DIY electronics enthusiasts, makers, and engineers. Whether you need to transmit audio to Bluetooth headphones or receive audio from a wireless source, this versatile stereo module handles both modes with ease.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the KCX_EMITER BT 5.3 Module?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBluetooth 5.3 Technology:\u003c\/strong\u003e Leverages the latest BT 5.3 protocol for faster, more stable wireless connections with auto-reconnect to previously paired devices — no manual re-pairing needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Mode Operation:\u003c\/strong\u003e Switchable between audio \u003cem\u003etransmitter\u003c\/em\u003e and audio \u003cem\u003ereceiver\u003c\/em\u003e modes — perfect for streaming audio to BT speakers, headphones, earbuds, or other Bluetooth-enabled devices.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Fidelity Stereo Sound:\u003c\/strong\u003e With an audio SNR of 95dB, dynamic range of 80dB, and a full 20Hz–20KHz frequency response, you get crystal-clear, true stereo audio in both directions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAT Command Support:\u003c\/strong\u003e Configure Bluetooth device name, connection management, and status indication via AT commands — ideal for seamless integration into custom firmware and DIY projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Compact Form Factor:\u003c\/strong\u003e Measuring just 24 × 15 × 3mm, this tiny board fits into even the most space-constrained enclosures while including a status LED for quick connection feedback.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Voltage:\u003c\/strong\u003e Runs on 3.5–5V, making it compatible with Arduino, Raspberry Pi, and most common microcontroller platforms right out of the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KCX_EMITER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBluetooth Version:\u003c\/strong\u003e 5.3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.5–5V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Current:\u003c\/strong\u003e 35mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRF Output Power:\u003c\/strong\u003e +5dBm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRF Frequency Range:\u003c\/strong\u003e 2402–2480MHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransmission Distance:\u003c\/strong\u003e ≤ 20 meters (line of sight)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio Dynamic Range:\u003c\/strong\u003e 80dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal Harmonic Distortion:\u003c\/strong\u003e –70dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio Frequency Response:\u003c\/strong\u003e 20Hz–20KHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e 95dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio I\/O Signal Amplitude:\u003c\/strong\u003e ≤ 2Vpp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 2-channel Stereo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransmission Delay:\u003c\/strong\u003e 250–300ms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoard Dimensions:\u003c\/strong\u003e 24 × 15 × 3mm (0.94 × 0.59 × 0.12 in)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× KCX_EMITER Bluetooth 5.3 Transceiver Module\u003c\/li\u003e\n  \u003cli\u003e1× Antenna\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGreat For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY Bluetooth audio projects\u003c\/li\u003e\n  \u003cli\u003eWireless speaker builds\u003c\/li\u003e\n  \u003cli\u003eArduino \/ Raspberry Pi audio upgrades\u003c\/li\u003e\n  \u003cli\u003eCustom earphone \u0026amp; headphone mods\u003c\/li\u003e\n  \u003cli\u003ePrototyping and electronics development\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/22awg-glass-tube-fuse-holder-5x20mm-6x30mm-screw-type-10-pack\"\u003e10-Pack 22AWG Glass Tube Fuse Holder 5x20mm \u0026amp; 6x30mm Screw\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/12-key-flashing-mechanical-keyboard-stress-relief-fidget-toy\"\u003e12-Key Flashing Mechanical Keyboard Stress Relief Fidget Toy\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/140w-auto-eject-usb-c-charging-cable-anti-overcharge-battery-guard\"\u003e140W Auto-Eject USB-C Cable – Anti-Overcharge Battery Guard\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on wireless communication standards, visit the NIST Wireless Technology Resource.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to monitor and lighting variations, actual product color may differ slightly from images. Please allow ±1–2cm measurement tolerance.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Module\" target=\"_blank\" rel=\"noopener\"\u003eModule\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Can the KCX_EMITER Bluetooth 5.3 module work as both a transmitter and a receiver?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The KCX_EMITER BT 5.3 audio module supports both transmitter and receiver modes. You can configure it via AT commands to either send audio wirelessly to Bluetooth speakers or headphones, or receive audio from a Bluetooth-enabled source device.\u003c\/p\u003e\n\u003ch4\u003eQ: What microcontrollers or platforms is this Bluetooth 5.3 audio module compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The module operates on 3.5–5V and communicates via standard AT commands, making it compatible with Arduino, Raspberry Pi, ESP32, and most other common microcontroller and development platforms used in DIY electronics projects.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the wireless transmission range of the KCX_EMITER stereo GFSK transceiver?\u003c\/h4\u003e\n\u003cp\u003eA: The KCX_EMITER module supports a transmission distance of up to 20 meters in open line-of-sight conditions. Walls, interference, and obstructions may reduce the effective range in real-world environments.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this module support automatic reconnection to paired Bluetooth devices?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The Bluetooth 5.3 protocol used by this module includes automatic reconnection to the last paired device, so you won't need to manually re-pair every time you power the module on.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Can the KCX_EMITER Bluetooth 5.3 module work as both a transmitter and a receiver?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The KCX_EMITER BT 5.3 audio module supports both transmitter and receiver modes. You can configure it via AT commands to either send audio wirelessly to Bluetooth speakers or headphones, or receive audio from a Bluetooth-enabled source device.\"}}, {\"@type\": \"Question\", \"name\": \"What microcontrollers or platforms is this Bluetooth 5.3 audio module compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The module operates on 3.5–5V and communicates via standard AT commands, making it compatible with Arduino, Raspberry Pi, ESP32, and most other common microcontroller and development platforms used in DIY electronics projects.\"}}, {\"@type\": \"Question\", \"name\": \"What is the wireless transmission range of the KCX_EMITER stereo GFSK transceiver?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The KCX_EMITER module supports a transmission distance of up to 20 meters in open line-of-sight conditions. Walls, interference, and obstructions may reduce the effective range in real-world environments.\"}}, {\"@type\": \"Question\", \"name\": \"Does this module support automatic reconnection to paired Bluetooth devices?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The Bluetooth 5.3 protocol used by this module includes automatic reconnection to the last paired device, so you won't need to manually re-pair every time you power the module on.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Module \/ United States","offer_id":47710863163497,"sku":"14:29#Module;200007763:201336106","price":28.92,"currency_code":"USD","in_stock":true},{"title":"Antenna \/ United States","offer_id":47710863196265,"sku":"14:10#Antenna;200007763:201336106","price":20.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Seb0cbc5f3d8d429082dea086c841c234U.webp?v=1782061197","url":"https:\/\/oasis-select.com\/products\/kcx-emiter-bluetooth-5-3-audio-transmitter-receiver-stereo-module","provider":"Oasis Select","version":"1.0","type":"link"}