XUELIN H7 Dual ES9038Q2M Digital to Analog Convertor (DAC)

Specification:
Model: XUELIN H7
Size: 80*80*15mm
Weight: 135g
Shell: CNC aluminum alloy polished sand black
Double-sided 2.5D glass face plate Software Main copy: STM32F030C8T6
Display: 128 * 32mm, 0.91 inch white light OLED display
USB codec: SA9227 (9123) DSD codec
Audio codec: ESS9038Q2M*2
LPF Speaker: SoundPlus 'Precision Sound Release OPA2134'
Earphone Speaker: track to track 310Ma AD8397
Importing and exporting (p-p):
LOW (O-32 ohm) Single end 2.9V Equilibrium 5 8V
MID (32-150 ohm) Single end 4.1V Equilibrium 8.2V
HIG (150-100 ohm) Single end 6.8V Equilibrium 13.4V
Distortion: (15KLPF 1kHZ Distortion-30dB Volume) 0.0055%
Signal-to-noise ratio: 112 dB (1KHZ, 2V-VPP, RL = 1k)
Frequency response: 20-20kHz + 0-0.035dB
Battery: 2900MAH 3.7V
Charging: 5V 2A USB Charger