Mini bluetooth Amplifier Specifications. Input voltage: AC 220V/ DC12V(in car) 4. Impedance: 4-16? 5. Plug: EU plug(sent with an adapter according to your country) 6. RMS power: 15W x2 8. Peak power: 45W x2 9. Load impedance: 4-16? 10. Channel: 2.0 11. Distoration rate: 0.05% 14. 19×12.5×4.5cm/ 7.48×4.92×1.77” Features: -Mini HIFI digital bluetooth audio power amplifier. TF Card, AUX, U disk, MP3 format play, support bluetooth wireless connection. Supports FM stereo radio. With treble, bass, and volume control, very easy to use. Low distortion supplies a clearer, stronger and more powerful sound. Two main channel output. With Remote control function. DC/ AC power in, Suitable foe home or your car. 1 x Audio Stereo Amplifier 1 x Remote Control. Ceiling Speaker Features. The horn has the fine sound analysis ability, wider frequency response than the ordinary horn good transient response to ensure the strict synchronization of each sound segment, is a high-performance product in the roof-absorbing buiit-in loudspeaker. Product model: WEAH-450A 2. Material: ABS Plastic 3. Color: Black/ White 4. Frequency: 70-18KHZ (white) 100-18KHZ (black) 5. RMS power: 15W 6. Maximum power: 30W 7. Sensitivity: 87 DB 8. Impedance: 4? 9. Mounting Depth: 54mm 10. Opening size: 108mm 11. This is a broadcasting speaker without transformer. If you need more than one set of parallel connection, you need to install transformer to use it. The item “Bluetooth Home Stereo Amplifier Ceiling Speaker System Kit Flush Mount Cafe Lot” is in sale since Friday, February 15, 2019. This item is in the category “Consumer Electronics\TV, Video & Home Audio\Home Audio\Home Speakers & Subwoofers”. The seller is “kwotop2014″ and is located in Shenzhen. This item can be shipped worldwide.