1. Material: metal
2. Connector: RCA connector 1/4"TRS
3. Power supply: DC 12V
4. Power adapter: US plug, input 110-240v 50/60Hz, output 12v 500mA
5. Ultra-compact preamplifier with metal casing, lightweight and durable
6. 2 x RCA (L & R) inputs 2 x RCA (L & R) outputs 1x1/4" TRS output, multiple connection options
7. With level and volume control knobs
8. Convert telephone signals to line level signals
9. Ultra-low audio performance, providing excellent sound quality
10. Size: 10.3x5.7x3cm
11. Weight: 177 grams