| TOSR08-D - 8 Channel USB/Wireless Timer Relay Module Xbee Control Kit | buildcircuits.com | 85 USD | — | — |
| TOSR08 - 8 Channel Relay Xbee Remote Control Kit | buildcircuits.com | 84 USD | — | — |
| TSA1453B Bluetooth + DSP Audio Receiver Board | tinysineaudio.com | 82.95 USD | — | — |
| 4 x 100W Bluetooth 5.1 DSP Audio Amplifier Board - TSA8814 | tinysineaudio.com | 79.5 USD | — | — |
| 4 x 100W Bluetooth 5.1 Multipoint + DSP Audio Amplifier Board - TSA8804 V2 | tinysineaudio.com | 79.5 USD | — | — |
| TOSR04-D - 4 Channel USB/Wireless Timer Relay Module Xbee Control Kit | buildcircuits.com | 72 USD | — | — |
| TOSR08 - 8 Channel Smartphone Relay Wi-Fi Remote Control Kit | buildcircuits.com | 72 USD | — | — |
| TOSR04 - 4 Channel Relay Xbee Remote Control Kit | buildcircuits.com | 71 USD | — | — |
| 2 x 100W + 200W 2.1 Channels Bluetooth Audio Amplifier Board - TSA7500B(Apt-X) | tinysineaudio.com | 69.5 USD | — | — |
| 2 x 100W + 200W 2.1 Channels Bluetooth+DSP Audio Amplifier Board - TSA8800B(Apt-X) | tinysineaudio.com | 69.5 USD | — | — |
| TOSR02-D - 2 Channel USB/Wireless Timer Relay Module Xbee Control Kit | buildcircuits.com | 69 USD | — | — |
| TOSR02 - 2 Channel Relay Xbee Remote Control Kit | buildcircuits.com | 69 USD | — | — |
| 4 x 50W SPDIF Coaxial+DSP Amplifier Board - TSA7804C | tinysineaudio.com | 68.5 USD | — | — |
| 2.1 Channels SPDIF Coaxial+DSP Amplifier Board - TSA7800C | tinysineaudio.com | 68.5 USD | — | — |
| 1 x 200W Bluetooth+DSP Mono Audio Amplifier Board - TSA7550B(Apt-X) | tinysineaudio.com | 68.5 USD | — | — |
| 2 x 100W + 200W 2.1 Channels SPDIF TOSLINK+DSP Audio Amplifier Board - TSA8800D | tinysineaudio.com | 68.5 USD | — | — |
| 2 x 100W + 200W 2.1 Channels SPDIF Coaxial+DSP Audio Amplifier Board - TSA8800C | tinysineaudio.com | 68.5 USD | — | — |
| 4 x 50W Bluetooth+DSP Amplifier Board - TSA7804B(Apt-X) | tinysineaudio.com | 66.5 USD | — | — |
| 2 x 50W + 100W 2.1 Channels SPDIF TOSLINK+DSP Amplifier Board - TSA7800D | tinysineaudio.com | 65 USD | — | — |
| 2 x 100W + 200W 2.1 Channels Bluetooth Audio Amplifier Board - TSA7500 | tinysineaudio.com | 64.5 USD | — | — |
| TOSR08-T - 8 Channel Relay Wi-Fi Remote Control Kit - DS18B20 | buildcircuits.com | 63 USD | — | — |
| 2 x 100W + 200W 2.1 Channels DSP Audio Amplifier Board - TSA8800A | tinysineaudio.com | 61.5 USD | — | — |
| 4 x 100W Bluetooth 5.1 Multipoint + DSP Audio Amplifier Board - TSA8804 V2 | buildcircuits.com | 61 USD | — | — |
| TSRW430- 4 Channel Wi-Fi Smartphone Controlled 30A Relay Board with Enclosure | buildcircuits.com | 60 USD | — | — |
| 2 x 100W Bluetooth+DSP Audio Amplifier Board - TSA8802B(Apt-X) | tinysineaudio.com | 59.95 USD | — | — |
| 4 x 100W Class D Bluetooth Audio Amplifier Board - TSA8498B(Apt-X) | tinysineaudio.com | 59.5 USD | — | — |
| TOSR04-T - 4 Channel Smartphone Relay Wi-Fi Remote Control Kit - DS18B20 | buildcircuits.com | 57 USD | — | — |
| 1 x 200W Bluetooth+DSP Mono Amplifier Board - TSA7550B(Apt-X) | buildcircuits.com | 57 USD | — | — |
| 2 x 50W + 100W 2.1 Channels Bluetooth+DSP Amplifier Board - TSA7800B(Apt-X) | buildcircuits.com | 57 USD | — | — |
| 1 x 200W Bluetooth+DSP Mono Audio Amplifier Board - TSA7551B(Apt-X) | tinysineaudio.com | 56.95 USD | — | — |
| TSIR341 - 4 Channel Outputs- 4 optically Isolated Inputs 30A Bluetooth Relay | buildcircuits.com | 56 USD | — | — |
| 4 x 100W Class D Bluetooth Audio Amplifier Board - TSA8498 | tinysineaudio.com | 54.5 USD | — | — |
| TSIR04 - 4 Channel Outputs- 4 optically Isolated Inputs Wi-Fi Smartphone Relay | buildcircuits.com | 54 USD | — | — |
| TSIR04B - 4 Channel Outputs- 4 optically Isolated Inputs Wi-Fi Smartphone Relay | buildcircuits.com | 54 USD | — | — |
| TOSR182 - 8 Channel Smartphone Wi-Fi Relay - (Password/Momentary/Latching) | buildcircuits.com | 53 USD | — | — |
| TOSR196 - 12 Channel Smartphone Bluetooth Relay - (Password/Momentary/Latching) | buildcircuits.com | 53 USD | — | — |
| TSRB430 V2 - 4 Channel Bluetooth Smartphone Controlled 30A Relay Board with Enclosure | buildcircuits.com | 53 USD | — | — |
| TSTR04 - 4 Channel Outputs 4 Temperature Sensors Wi-Fi Smartphone Relay (Thermostats) | buildcircuits.com | 53 USD | — | — |
| 4 x 50W Bluetooth+DSP Amplifier Board – TSA7804B(Apt-X) | buildcircuits.com | 53 USD | — | — |
| TOSR04 - 4 Channel Smartphone Relay Wi-Fi Remote Control Kit | buildcircuits.com | 53 USD | — | — |