Feature:1. INNOVATIVE BONE CONDUCTION TECHNOLOGY: This speaker use advanced bone conduction technology to transmit music through the bone to the auditory nerve, giving you a new hearing experience, especially for enjoying clear sound quality in noisy environments2. STEREO CONNECTION: Support true stereo connectivity, enabling two speakers to work simultaneously to create immersive surround sound effects, whether in the bathroom or outdoors, to enjoy cinema quality audio feast3. MULTI FUNCTIONAL PLAYBACK MODE: The bone speaker has various playback modes of BT, AUX cable and small memory card(not included), and is compatible with various devices to meet the music needs in different scenes, so that you can enjoy music anytime and anywhere4. ALUMINUM ALLOY MATERIAL: The mini bone conduction speaker use a sturdy and long lasting aluminum alloy housing, which is not only beautiful, but also effectively protect the internal components, ensure the long term use of the speaker and still maintain good performance5. INTELLIGENT SUCTION CUP DESIGN: The bone conduction stereo speaker has a special strong suction cup base, which can be firmly adsorbed on smooth surfaces such as bathroom tiles and glass, waterproof and non slip, and can be used safely and stably even in wet environmentSpecification:Item Type: Bone Conduction SpeakerMaterial: Aluminum alloyPlayback Mode: BT, AUX, small memory card(not included, support up to 64GB)Speaker: 4Size: Approx. 33mm / 1.3inFrequency: 20HZ-20KHZSignal To Noise Ratio: 75dbDistortion: 0.1%Battery Type: Built in 800mAh lithium ion battery.Package List:1 x Speaker1 x Suction Patch1 x Hanging Rope1 x Data Cable1 x User Manual