Feature

Operational amplifier chip: NE5532

Replaceable op amp chip: OPA2604, OPA2314, LM4562,NE5532 etc.

Signal to noise ratio: ≥111db

Frequency response: 20-20Khz (±0.1db)

Distortion: 0.03%

Load impedance: 16-300Ω

Maximum output power: 170mW/32Ω load

Input mode: AUX

Support equipment: mobile phones, tablets, computers, MP3, TV, etc.

Output mode: amp, earphone, active speaker

Working voltage: 2.8V-4.2V

Charging voltage: DC5V

Battery capacity: 3000mah (lithium battery)

Maximum volume working time: 8 hours

Size: 110*62*17mm

Product net weight: 123g

Package weight: 210g

Package included:

1*H1 earphone amp

1*type - C Charging Cable

1*Audio Line

1*User Manual

1*retail Box