Harman Kardon Onyx Studio Premium Wireless Bluetooth Speaker Deep Bass Audio Receiver for iPhone 6S / 6S Plus iPad Pro Android Samsung HTC HUAWEI etc - Black. The Harman Kardon Onyx Studio Wireless Bluetooth Speaker is a new high end speaker made by Harman Kardon and utilizes wireless Bluetooth technology in order to play music easily. The speaker system is built like an unassuming black circle that is propped up by a stand. Features advanced Bluetooth V3.0 technology, it provides the ultimate sound companion to all your smart Bluetooth devices, furnishing you with room-filling sound through its 4 powered speakers and dual passive radiators. Additionally, 2600mAh rechargeable lithium battery lasts to 5 hours playing time on a single charge which you can enjoy wonderful music with your lovers anytime anywhere! For a one-piece Bluetooth speaker, the Onyx Studio puts out some impressive sound. It features two 3-inch woofers, two 3/4-inch tweeters and two passive radiators, with 15 watts going to each active driver for a total power level of 60 watts. Harman Kardon claims the speaker boasts a frequency response of 60Hz to 20KHz, and the bass response seems to confirm that. So buy this Harman Onyx Studio Bluetooth Speaker Deep Bass Audio Receiver For Just $109.99. Plus Get Free Shipping.