INNOVATIVE BONE CONDUCTION TECHNOLOGY: This speaker use advanced bone conduction technology to transmit music through the bone to the auditory nerve, giving you a hearing experience, especially for enjoying clear sound quality in noisy environments 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 feast MULTI FUNCTIONAL PLAYBACK MODE: The bone speaker has playback modes of BT, AUX cable and small memory card(not included), and is compatible with devices to meet the music needs in different scenes, so that you can enjoy music anytime and anywhere 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, the long term use of the speaker and still maintain good performance 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, and non slip, and can be used safely and stably even in wet environment Specification Item Type: Bone Conduction Speaker Material: Aluminum alloy Playback Mode: BT, AUX, small memory card(not included, support up to 64GB) Speaker: 4Ω Size: . 33mm / 1.3in Frequency: 20HZ-20KHZ Signal To Noise Ratio: ≥75db Distortion: ≤0.1% Battery Type: Built in 800mAh lithium ion battery How to Use BT connecting is required for use. Color: Red Package Contents: 1*Bone conduction speaker 1*Charging cable 1*Instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.