Suggested Retail: $79.99. Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116. The BT20A home integrated digital amplifier comes with a 24V/4.5A power supply and can drive 280watts(8 ohms), 320watts(4 ohms) speakers. This is suitable for passive speakers only, not the powered speakers. It adopts 2PCS Texas Instruments TPA3116D2 chip and has advanced oscillator/PLL circuit with multiple switching frequency option to avoid AM interferences. The device features Bluetooth 5.0 core, up to 50ft connection range ensuring low signal delay. Brand: Fosi Audio. Model: BT20A. Alternate Title: Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini HiFi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply). 1ACCESSORIES 1ACCESSORIES 1OTHER . 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.