AIYIMA H1 Portable headphone amplifier

Description

Product description: Operational amplifier chip: JRC5532*2 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 (polymer battery) Maximum volume working time: 4 hours Size: 110*62*17mm Product net weight: 123g Package weight: 210g More features: Removable and replaceable battery Op amp can be replaced Three-terminal regulator: IC-79L08-SOT89 Step-down: IC-MP1484-SOIC8 Charging management: IC-TP4056-SOP8 Boost: IC-SX1308-SOT23-6 Voltage detection: IC-HT7027A-SOT89