Rockville BluTube LED 70w Bluetooth Tube Amplifier / Home Receiver + (4) Cube 3.5" Wall Speakers

Bundle overview: Includes (1) Rockville BluTube LED 70w Bluetooth Tube Amplifier / Home Stereo Receiver (black) and (2) Cube by Rockville pairs of 3.5" black home theater wall speakers with swivel brackets. Also supplied: Tube amplifier/receiver, 5 Foot RCA to 3.5MM cable, 5.5 Foot power cable, owner’s manual / warranty card. BluTube LED Tube Amplifier (features): Audiophile-grade tube amplifier with blue illuminated tubes and blue-lit control knobs. Built-in Bluetooth (2.1+EDR) with approximately 33 foot range. Integrated preamplifier, headphone output, VU meter and USB input for playback of WAV/MP3/WMA/APE/FLAC files. Controls include adjustable bass and treble (2-band equalizer). One set of RCA inputs for connection to TVs, laptops, MP3 players, etc., plus optical and coaxial digital inputs and a dedicated sub output. Rear speaker terminals use banana plug / binding post outputs for two speakers. Tube amplification avoids hard-clipping at high volumes and delivers a sound character that can appear louder than the rated power. BluTube LED Amplifier (specifications): 25 watts x 2 RMS @ 8 ohm. 35 watts x 2 RMS @ 4 ohm. Frequency Response (3dB): 22Hz-20kHz. Input Impedance: 47kO. Input Sensitivity: 300mV. Output Impendence: 4-8ohm. Total Harmonic Distortion(THD): ?0.02%. Signal-to-Noise Ratio(S/N): ?86dB. Bluetooth: 2.1+EDR. USB : Supports WAV/MP3/WMA/APE/FLAC. 110V. Unit weight: 6.6 lbs. Unit dimension: 10.6"x10.2"x5.1". Cube by Rockville 3.5" Wall Speakers (package and features): Cube by Rockville black 3.5" speakers with swivel mounting brackets for wall installation. RMS Power: 30 Watts each / 60 Watts per pair. Peak Power: 75 Watts each / 150 Watts per pair. Impedance: 8 Ohm. 3.5" woofer with paper cone for natural mids and bass, and a 0.5" black PEI tweeter for clear highs. True 2-way design for improved fidelity compared to single-driver designs. Sensitivity: 86 dB +-2dB (1M/2.83V). Frequency Response (3db): 130Hz - 20kHz. Cabinet Material: ABS. Color: Black. Shielded grill for dust and damage protection. Audiophile-grade sound suitable with a subwoofer for an enhanced home theater; ideal for use as surround speakers. Euro block speaker terminals with quick disconnect. Additional items included: (2) Speakers. (2) mounting brackets with metal bars. (2) safety cables. (8) screws. (1) User manual?.