Product Specifications:
# Effective Distance: 10m
# Output Power: 7W x 2
# Charge Voltage: DC 5V
# Frequency Response: 100Hz – 20KHz
# Signal-to-Noise Ratio (SNR): ≥70dB
# Intrusion: 1%
# Audio Input: Bluetooth // USB // microSD
# Speaker Unit: 4 Ω