Description: 1. it is the worlds smallest and most versatile bone conduction speaker. it allows you to listen to music, follow podcasts, have individual phone conversations or conference calls, and even enjoy an amazing experience of the sound of your games, videos or films played on your device.Transforms anything hollow Into a speaker, at any time. 2. Place It on top of different surfaces such as a guitar, a kraft box, a plastic storage box, photo frames, sports helmet or even dashboards can provide you varying of sound effects. 3. It works like a humBird, small but powerful. It delivers a high sound volume, being 4 to 5 times louder than the average cell phone speakers' volume, reaching up to 115db, and it allows you to personalize the tone quality. 4. Portability: This product is small in size and light in weight, which is very convenient to carry around. 5. Beautiful: This product is made with functional exquisite craftsmanship, and appearance is very stylish and beautiful. Product properties: Main control chip: Bluetooth 5.0 supports TWS real stereo, FM radio Function chip: 20HZ~20KZ full range output Channel: two channels, 2 independent bone conduction transducers Output power: 3W audio output Audio decoding: support MP3/ AC3/AAC/WAV, etc. Bone conduction transducer: built-in reinforced magnetic core and high-performance coil Microphone: omnidirectional microphone, can talk FM radio: built-in FM enhancement IC, conventional indoor reception to more than 10 Charging interface: TYPE C interface, 5V0.4A charging current Built-in battery: lithium polymer battery, capacity 400mAh, 3.7-4.2V welding wire Standby time: not le than 240 hours Package: Humbird Bone-Conducting Speaker * 1 Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement. hello, guys, thank you for visiting my store.We guarantee the quality of our products.Welcome to visit.Hope you have a nice day!