
It's definitely small and inexpensive, but you get what you pay for. It's quite loud/hissing, more than I thought it would be. I thought since it has an auto shut off feature it would also turn on automatically but it doesn't. That was the main reason I bought it too, well, back to the drawing board. Edit: I disassembled it to see the innards, it's not much, see picture.

FiiO BTA30: Advanced Wireless Bluetooth 5.0 Long Range π Transmitter Receiver for PC/TV/Speaker/Headphone with HiFi Dac/DSP and Streamlined APP Control
15 Review

AIMPIRE AD10 Mini USB DAC CSS XMOS XU208 ES9018K2M OPA2134 HIFI Audio Decoder Amplifier For Enhanced Audio Performance
20 Review

Silver 160W Stereo Digital Amplifier With Power Adapter - S.M.S.L SA-98E For Enhanced SEO
15 Review

Bluetooth adapter Baseus BA01 black 1 pc.
95 Review

KLIM CD Boombox Portable Audio Player with FM Radio, Rechargeable Battery, Bluetooth, MP3, AUX, Neodymium Speakers, and Upgraded CD Laser Lens (2021 Edition)
11 Review

JBL Horizon Bluetooth Alarm Clock Radio with Multiple Alarms, Soothing Ambient LED Light, Automatic LCD Display, and Dual USB Charging (White, AM/FM Radio)
41 Review

Experience Dynamic Audio with Panasonic SC-UX100 CD & USB Wireless Bluetooth 300W Mini Hi-Fi System Shelf Stereo
19 Review

Sangean PR-D4W Portable Weather Alert Radio with AM/FM Bandwidth Narrowing and Auto Tracking for Improved Searchability
12 Review