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Amazon.com: Bluetooth Power Amplifier Board 2×6W DC 5V/3.7V Lithium Battery with Charge Management HF69B 4Ω 6Ω 8Ω : Electronics
Amazon.com: Bluetooth 4.2 TPA3110 30w+30W PBTL Digital Stereo Audio Power Amplifier Board Module 12V-24V car for Portable USB Speaker : Electronics
Amazon.com: HiLetgo HC-06 RS232 4 Pin Wireless Bluetooth Serial RF Transceiver Module Bi-Directional Serial Channel Slave Mode for Arduino : Electronics
Amazon.com: Lheng Digital Bluetooth Power Amplifier Amp Ampli Board, Dual Channel 120W+120W TPA3116D2 CSR 4.0 Audio Stereo Amplifier, Audio Receiver for Home Theater Speaker DIY DC 12-24V Powered : Electronics
Micro USB Mini MP3 Bluetooth 4.1 Car Speaker Amplifier Board Module Lossless Decoder Stereo Output Circuit Board Module 3.7V 5V: Amazon.com: Industrial & Scientific
Amazon.com: Blue~Tooth Board, DROK 12V Audio Receiver Blue~Tooth Module DC 5V-12V Portable Wire~Less Electronics Stereo Music Receive Circuit Chip with Micro USB Port for Headphone Speaker Home Sound System DIY : Electronics
Amazon.com: HiLetgo 3W Car Bluetooth 4.1 MP3 WAV Decoding Board Speaker Amplifier Audio Receiver Module Support USB/TF/U-Disk/IR with Remote Control : Electronics
Amazon.com: 15Wx2 Durable Mini Bluetooth Amplifier Board Module 4.2 Circuit Stereo Speaker Digital Module with Dual Channel Output : Electronics
Amazon.com: Digital 2.1 Channel Amplifier Board Bluetooth USB T-F Input 50w x2 Subwoofer BTL 100w Home Stereo Amplifiers for Speakers DC 12V-26V : Electronics
Amazon.com: HUAZHU DC12V-24V 2.1 Channel TPA3116 Subwoofer Amplifier Board High Power Bluetooth Audio Amplifier Board 50W+50W+100W (Bluetooth Amp), Bluetooth Amp : Electronics
Amazon.com: Bluetooth Amplifier Board 2.1 2X50W+100W 12V-24V Audio Power Amplifier Module Bass and Treble Control for Store Home Theater Speakers with Antenna : Electronics
Amazon.com: 5V WI-FI Wireless Receiver Board Module Bluetooth Audio Compatible with Bluetooth USB Card for Amplifier Stereo : Electronics
1x 12V/24V Car Bluetooth 4.0 Audio Receiver Board Wireless Stereo Sound Module: Amazon.com: Industrial & Scientific
Amazon.com: Stereo Hands-Free Call Bluetooth Recording Module, VHM-314 MP3 Bluetooth 4.1 Audio Receiver Decoder Board DIY Lossless Car Speaker Amplifier Board : Electronics
Amazon.com: WiFi & Bluetooth Audio Preamplifier Board, Wireless multiroom/multizone Home Stereo HiFi Music Receiver Circuit Module with Airplay,Spotify.Remote Control for DIY Speakers - Arylic Up2stream Pro V3 : Electronics
Amazon.com: BK3266 Blue~Tooth Board, 12V 24V BLE5.0 Mono Board DC 20W/30W Blue~Tooth/MIC/AUX Audio Input Support Change Name Call : Electronics
Amazon.com: Parts Express Stereo 4.2 Bluetooth 2 x 30W Amp Board with Volume Control, USB Reader/Charger, and IR Remote : Electronics
Amazon.com: SEEU. AGAIN Bluetooth Board,Audio Receiver Module DC 5V-24V Portable Wireless Electronics Stereo Music Receive Circuit Chip with Micro USB Port 3.5mm Jack Headphone Speaker Home Sound System DIY : Electronics
Amazon.com: Bluetooth Receiver Board, Icstation High Power Stereo Audio Amplifier Digital Amp Module 12V 24V 10/15/20/50W with Case for DIY Wireless Speaker : Electronics
Amazon.com: DSD TECH HM-10 Bluetooth 4.0 BLE iBeacon UART Module with 4PIN Base Board for Arduino UNO R3 Mega 2560 Nano : Electronics
Amazon.com: Subwoofer Amplifier Board, Arylic WiFi & Bluetooth 5.0,50W2 Stereo Pair + 100W Sub Class D Stereo Amplifier,Multiroom/multizone Home Audio Amplifier Board for DIY Speaker-Up2stream Amp 2.1 : Electronics
Amazon.com: TSA2110A - 2 x 8 Watt Class D Bluetooth 4.0 Audio Amplifier Board : Electronics