Package Include:1 * Transmitter1 * Receiver1 * Antenna1 * Audio connecting cable(3.5mm-6.3mm)1 * Audio connecting cable(6.3mm-3.5mm)1 * Power adapter (US plug)1 * Use manual (English & Chinese)Specifications:Features:- Quick and easy setup of reliable wireless audio transmission.- Transmission distance of 30 meters, without the interference of external signals.- Comes with 2 audio connecting cables (3.5mm to 6.3mm & 6.3mm to 6.3mm), easy to use with guitar, bass, etc.- LED power indicator for working status and low battery warning.- Circuit controlled switching noise elimination.Overall System:- Carrier frequency: 220MHz-270MHz- Frequency response: 40Hz-18kHz- Dynamic range: >105dB- Total harmonic distortion: <0.5%- Frequency steadiness: ±0.005%- Operating temperature: -10-50 degree centigradeReceiver:- Sensitivity: >-80dB- S/N Ratio: >50dB- Audio output level: 0-800mV- Power Supply: DC 12V/300MATransmitter:- Modulation mode: FM- Transmit power: ≤10mW- Max