KOSDFOGE Headphone Amplifier - 1000X ALC Stereo

Feature: 1. APPLICABLE RANGE: The headphone amplifier is suitable for teaching, coaches, singers, coaches, shopping malls, presentations, outdoor speeches, etc. Specification: Item Type: Headphone Amplifier Material: Aluminum Alloy Battery: 502030 lithium-ion battery (built-in) Capacity: 250 MA Power supply: DC 5V Interface: approx. 3.5mm/0.1 inch Practical Use: Direct Drive Headphones For Listening, Can Connect To Cell Recording Size: approx. 65x53x25mm/2.6x2.1x1.0in Package List: 1 x Microphone Amplifier 1 x Power Cable 1 x Earphone Cable Note: Please allow any error due to manual measurement