Mini 4 inch Wall Amplifier Bluetooth-compatible Touch Key In-wall Plate Smart Home Theater Background Music Audio with 4.5 inch Stereo Ceiling Speaker

Wall Amplifier Hardware Parameters:● Power: AC110V-250V(50HZ)● Impedance: 4-8Ω● Output Power: 2x20W● Audio S/N Ratio: ≥98dB● Frequency Response: 20-20KHz● Infrared Remote Control Distance: 10M● Bluetooth Distance: 10M● Product Size: 868610mm● Installation: 86 Standard cable box4.5 inch ceiling speaker specificationFrameless designOutput power: 10WInput: 8ΩSensitivity (1W / 1M): 89dB ± 3dBFrequency response: 100Hz-16KHzSpeaker unit: 4.5''x1Installation opening size: Φ148mmProduct size: 16016057mm, 20pcs/ctnWeight: 0.42KGShell material: plastic frame + iron mesh coverWall Amplifier Function Description:1. Audio format: Support MP3, WAV, APE etc.2. Bluetooth function: Support pairing of external Bluetooth devices such as mobile phones for audio playback.3. External sound input: Support external sound source input to the machine, amplified output.4. Memory card function: external TF card, support 32GB TF card.5. USB function: Connect USB (support 32GB) to read music, and easily set up family background music space.6. Volume adjustment: 15-level electronic volume adjustment function.7. Power-off memory function: memorize the state played before the last shutdown.Note● In some countries, some apps can be used perfectly, but in any countries can not be used, it's not our product quality, it's because google service of our device is not allowed in those countries.● Our company continuously improves product performance, and design specifications are subject to change without notice