Amplified Board Module Two Channel Design Stable Durable Dynamic Microphone Preamplifier Board

Feature: 1. Two Channel Design: This microphone preamplifier board adopts two channel design, suitable for single lithium battery powered. 2. One Channel: If only used one channel,the other channel needs to short circuit the input with GND, to avoid interference with the signal crosstalk. 3. AD828 Chip: This microphone preamplifier board adopts AD828 fever op amp chip,suitable for low voltage power supply (3.8‑15V). 4. Stable Performance: This microphone preamplifier board is made from premium plastic material, which ensures stable performance. 5. Practical Accessory: This microphone preamplifier board is suitable for guitar, erhu and other musical instruments. Specification: Item Type: Amplified Board Module Material: Plastic Product Model: AD828 Working Voltage: DC3.8V-15V Power Supply: 3.8-15V Lithium Battery or Linear Power Supply (Battery Not Included) Board Size: Approx. 25 x 16mm / 0.98 x 0.63in Package List: 1 x Amplified Board Module Note: This microphone amplifier board without power regulator circuit,can only use the battery or linear power supply,can not use switching power supply,otherwise there will be interference.