Active Bluetooth Wireless 4.0 - 70 Watts - Optical Input and Subwoofer Line Out - Includes Remote Control, Speaker Wire and Audio Cable (Piano Black) Edifier R1850DB 2.0 Book Shelf Speakers Active Bluetooth 4.0 Optical Input Subwoofer Line Out 70 Watt Piano Black Subwoofer Supported Bookshelf Speakers New Technology Familiar Design - Bringing back old school design with the latest technology. The R1850DB is an active 2.0 bookshelf speaker system designed at a 10-degree angle to accurately direct sound to you in the luxurious MDF wooden enclosure geared to minimise acoustic resonance. The mid woofer output produces quality sound and performance. The bass vibrates any room or space it inhabits, creating an ideal atmosphere for entertainment. The R1850DB is classic and fun with the latest Bluetooth technology allowing playtime from phones, tablets or laptops. When thinking of the R1850DB bookshelf speakers the first thing that comes to mind is balance; the perfect balance of function and design. Comprehensive Controls - The R1850DB comes with a fully featured remote for the set of bookshelf speakers. Adjust the volume, switch inputs, mute the speakers and control Bluetooth connected playback all from your fingertips. The design of the remote with its modern sleek feel puts the power in your hands. Its easy to use and fits right in the palm of you hand providing the ultimate comfort. Edifier makes it easy on you with the simple remote commands for the R1850DB bookshelf speakers. Inputs are accessible with clear and concise functionality complimenting the manual. Angle Design Directs Sound - Every aspect of Edifier’s R1850DB bookshelf speakers are designed with purpose. The medium-density fibreboard [MDF] enclosure reduces distortion and minimises acoustic resonance. The base of the speaker is angled at a 10-degree incline for dynamic precision and delivery. The design of the angle directs sound from the woofers right to your ears producing 70 watts of balanced quality tunes. Edifier’s R1850DB active bookshelf speakers are a stand out in both categories of style and performance. Its 4-inch midrange/woofer speaker drivers create rich lows. Meanwhile, the treble units produce clear highs. A perfectly tuned bookshelf speaker to suit your needs. Bluetooth and More - A familiar design meets new technology. Featuring Bluetooth 4.1, the R1850DB bookshelf speakers can be paired with any device. Simply sync your smartphone, tablet or computer and listen to your favourite music, videos or games. The latest Bluetooth 4.1 wireless technology is great for playing from multiple devices. Product Features FREQUENCY RESPONSE: 60Hz-20KHz TOTAL POWER OUTPUT: RMS 16Wx2 + 19Wx2 SIGNAL TO NOISE RATIO: ⩾85dBA TOTAL HARMONIC DISTORTION: 0.5% INPUT SENSITIVITY: PC:700±50mV AUX: 550±50mV TWEETER: Φ19mm silk dome, 6ohm SUBWOOFER: 4"Φ116mm 6ohm DIMENSION(ACTIVE SPEAKER): 154x254x224mm(w x h x d) NET WEIGHT: 6.63kg Includes 2X Speakers, Remoote Control, User Manual, 3.5 mm to RCA Cable, RCA to RCA cable, Fiber Optic Audio cable, Speaker connecting cable