Compact Bone Conduction Bluetooth Speaker Key benefits Keeps you connected to surroundings while listening: bone conduction transducers transmit sound through vibration rather than covering the ear. True stereo wireless listening: Bluetooth 5.1 with TWS support lets two units pair for left and right channels, improving spatial separation and immersion. Compact and portable: small footprint and light weight make it easy to carry or mount where space is limited. Main features and specifications Size and weight: height 30 mm, diameter 52 mm, weight 57 grams. Wireless: Bluetooth 5.1 with TWS true stereo sound for stable pairing and lowlatency audio. Frequency response: 20 Hz to 20 kHz fullrange output for broad audio coverage. Audio hardware: dualchannel design with 2 independent bone conduction transducers. Output power: 3 W audio output. Audio decoding: supports MP3, AC3, and other common audio formats. Battery and charging: builtin polymer lithium battery, capacity 400 mAh, nominal 3.7 V, charge limit 4.2 V; Type C charging interface with 5 V 0.4 A charging current. Included accessories: 1 speaker, 1 charging cable. Why this product solves common problems Maintains situational awareness in environments where earcovering headphones are unsafe or inconvenient, such as commuting or working in shared spaces. Reduces ear fatigue from prolonged inear or overear use by providing an alternative listening method. Provides flexible placement and easy mobility thanks to small size and light weight. Practical use scenarios Outdoor activities: use while cycling, walking, or jogging when you need to hear ambient sounds as well as audio. Workbench or workshop: listen to audio while keeping ears to hear tools, colleagues, or warning signals. Desktop or travel companion: place on a desk, shelf, or bag during calls and media playback while staying aware of surroundings. Compatibility and performance notes Pairs with standard Bluetooth audio devices that support Bluetooth 5.1 or earlier. Supports common audio file formats for direct playback compatibility with most players. What is in the box 1 speaker 1 Type C charging cable Technical details summary Height: 30 mm Diameter: 52 mm Weight: 57 g Bluetooth: 5.1 with TWS Frequency range: 20 Hz to 20 kHz Channels: dualchannel, 2 bone conduction transducers Output power: 3 W Audio decoding: MP3, AC3, and others Charging port: Type C, 5 V 0.4 A Battery: polymer lithium, 400 mAh, 3.7 V nominal, 4.2 V charge limit This speaker is a compact, portable solution when you need openear audio, stereo wireless pairing, and reliable fullrange sound in a small package.