The TC44Pro E3 represents the pinnacle of compact design. Incorporating both 3.5mm and 4.4mm output jacks, a USB-C port, a and amplification motherboard, and three control buttons, it manages to stay as small as a thumb At its core, the TC44Pro E3 features the Logic CS43198 chip. This chip is designed to provide a high dynamic range, low distortion, and superior channel isolation for pristine sound quality. Supporting high sample rate decoding, native DSD processing, and seamless format switching Designed for ease of use, the TC44Pro E3 features three front-facing buttons, enabling easy one-handed operation. The volume control buttons are intuitively sized for quick adjustment, while the gain switch is strategically placed to avoid accidental toggling. The 60-step volume control provides precise adjustments, High-Gain Mode for Enhanced Output Power Ergonomic Button Placement for Easy Operation Specifications Plug: USB-C OTG Jacks: 4.4mm Balanced + 3.5mm Single-Ended Chips: Dual Logic CS43198 AMP Chips: Dual SGM8262-2 Volume Control: 60-step adjustment 3.5mm Single-Ended (High-gain mode, 3202 Load) Output Power: equal 175mW Output Voltage: 2.35Vrms 4.4mm Balanced (High-gain mode, 320 Load) Output Power: 2510mW Output Voltage: 4Vrms SNR: equal 123dB Dynamic Range: 120dB +N: less than equal 0.0004% PCM Decoding Support: Up to 32bit/384kHz DSD Decoding Support: Native DSD64/DSD128/DSD256 (The product printed words depending on the batch, but this does not affect use) Color:As Shown Material:Metal Package Contents: 1 * Hi-Res AMP Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.