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1. Question: What is the Bluetooth version supported by the BT201 Dual Mode 5.0 Bluetooth Lossless Audio Amplifier Module? Answer: The BT201 supports Bluetooth version 5.0. 2. Question: Does the Plastic In Ear Headphone Monitor Amplifier have a private mold? Answer: Yes, the Plastic In Ear Headphone Monitor Amplifier has a private mold. 3. Question: What is the voltage range for the Taidacent Diy Small 3V-6V Class-AB Stereo Tda1308 Headphone Amplifier Board? Answer: The voltage range for the Taidacent Diy Small 3V-6V Class-AB Stereo Tda1308 Headphone Amplifier Board is 3V to 6V. 4. Question: How many channels does the GAP-3886 Diy Amplifier Kit support? Answer: The GAP-3886 Diy Amplifier Kit supports 2 channels (2.0). 5. Question: Is the BT201 Dual Mode 5.0 Bluetooth Lossless Audio Amplifier Module capable of TF Card and USB input? Answer: Yes, the BT201 supports TF Card and USB input. 6. Question: How many channels does the Plastic In Ear Headphone Monitor Amplifier support? Answer: The Plastic In Ear Headphone Monitor Amplifier supports 4 channels. 7. Question: What type of amplifier is the Taidacent Diy Small 3V-6V Class-AB Stereo Tda1308 Headphone Amplifier Board classified as? Answer: It is classified as a mini amplifier. 8. Question: Does the GAP-3886 Diy Amplifier Kit come with a CE Certificate? Answer: Yes, the GAP-3886 Diy Amplifier Kit comes with a CE Certificate. 9. Question: What type of amplifier is the BT201 Dual Mode 5.0 Bluetooth Lossless Audio Amplifier Module classified as? Answer: It is classified as a professional amplifier. 10. Question: Is the Taidacent Diy Small 3V-6V Class-AB Stereo Tda1308 Headphone Amplifier Board designed for a specific place of origin? Answer: The product attribute lists the place of origin as "other," indicating it may not be specified or is from a diverse range of locations.