Model Number: Soaiy S-318BLK Brand Name: SOAIY Key Specifications/Special Features: Soaiy, focus on audio 19 yearsOur professional acoustic engineers can customize for your own protect sound of the speakersFeatures:Multi-functional LED displayProfessional sound amplifying circuit, amplifying clear without howlingProfessional reverberation circuit, analog echo effect without distortionUnique recording function, save to TF card and USB flash drive automaticallyDouble voice coil design, strong power, deep bass,mid-frequency smoothEquipped with high sensitivity radio antenna, one key scan and memory channelsSupport TF card or USB flash drive play directly,MP3/WMA double format
Amplify your sound, very suitable for teaching, tour guiding, sales promotion, and speech, out-door exercising and entertainment, and well protect your throat

Output power: 3W RMS
Frequency response: 120Hz to 20kHz
Input sensitivity: 500 ±50mV
Impedance: 4Ω
SNR: ≥70dB
Distortion: THD 0.3%
Battery: BL-5C/3.7V
Power supply: USB/5V DC
Product size: 129*87.5*40mm
Weight: 225g
Colors: white, blue, purple, green