The BL-2 is a little tube amp.
BL-2 is his latest update and replacement of BL-1.
Frequency Response: 10Hz ~ 100Hz
Input Sensitivity: 200mV
Output Power: 2 x 400mW
THD: ≤0.001% (1kHz, 2.5V)
SNR: ≥106dB (input shorted)
Recommended Headphone Impedance: 16ohm ~ 300ohm
Continuous Operational Battery Life: 3.5hours
Li-ion battery with over-charged protection circuit
Dimension: 110mm x 70mm x 25mm
Weight: 245g (battery included, not included power supply)
Box x 1
Charger x 1
3.5MM TO 3.5MM cable x 1
BL-2 x 1