Feature: 1. [Stereo Sound] Higher quality crystal clear stereo is designed by professional acoustic engineers. Dual accuracy stereo drivers provide clearer sound, accurate midrange and clear treble; Our proprietary passive bass enhances bass output; Unique circular design and downward bass further enhance the sound quality. 2. [3 Light Modes] The Bluetooth speaker has 3 lighting modes. The gradual colorful speaker allows you to enjoy the wonderful music of the HD subwoofer under the gradual lighting, which really brings you a party ambient. The portable speaker is the perfect speaker for any room and the ideal outdoor speaker. 3. [Wireless Connection] Advanced antenna design with Bluetooth 5.2 provides greater wireless range and make the connection prompt and stable. The high version Bluetooth helps to save power The wireless speaker connects easily with the cellphone, laptop, computer, and all other Bluetooth devices. 4. [4 Hours Playtime] Built in 1200mAh large capacity lithium battery (included), proving a long standby time and making the portable wireless speaker has up to 4 hours playtime, play from morning till night; AUX connect from TVs and non Bluetooth devices with a 3.5mm line in cable for the line in speaker. 5. [Hands Free HD Call] Built in microphone for your handsfree speaker phone calls from a cellphone. With hands free HD call, true wireless connection (connect 2 identical models in series into left and right channels). 3 play modes include Bluetooth, memeory card and AUX. Convenient to use. Specification: Item Type: Speaker Material: ABS Size: Approx. 112x83mm / 4.4x3.3in Colour: Black Battery: Lithium Battery (included) Capacity: 1200mAh Bluetooth: 5.2 Play Mode: Bluetooth, memeory card, AUX Parameters: Colorful glazed lighting, 8W iron boron strong magnetic speaker + submersible low frequency ballast, 3D stereo cinematic sound. With hands free HD call, true wireless connection (connect 2 identical models in series into left and right channels). . Package List: 1 x Speaker 1 x USB Charging Cable1 x Manual Note: Please allow some errors due to manual measurement.