Edifier 70 -Watt Smart Bluetooth Indoor Bookshelf Speaker in Black 2 Speaker Set

70 -Watt Smart Bluetooth Indoor Bookshelf Speaker in Black 2 Speaker Set. Built-in amplifier (35 watts x 2 speakers) so there is no need for outside amplifier or receiver-just plug into source and play. Bluetooth pairing capability to stream audio playback from compatible devices. 10° tilt angle directs sound toward ears to create a better listening experience. RCA, coaxial, and optical inputs plus subwoofer output. Ideal for cell phones, tablets, laptops, TVs, etc. 4-in midrange woofer and 19 mm silk dome tweeter in each speaker. Frequency response: 60 Hz to 20 kHz. Bass, treble, and volume dials located on back of the active speaker. High-quality MDF jet black wooden enclosures reduce unwanted room resonance