Machine material: ABS, spray silicone Horn: 40MM Bluetooth version: Lanxun 5.0 Frequency: 100Hz -20kHz Signal to noise ratio: ≥ 75db Power output: 3W Power input: DC5V 1A Effective distance: 10 meter Battery with protective plate: 350MAH Playback time: 3-4h Note 1. The product images and content on the above pages are for illustration only. The actual product effect (including appearance, color, size, etc.) may vary slightly. Please refer to the actual product. 2. The data on the above page are theoretical values obtained from internal laboratories in specific testing environments (see specific instructions for each item). In actual use, there may be slight differences due to individual product differences, software versions, usage conditions, and environmental factors. Please refer to the actual usage situation. 3. In order to provide as accurate product information as poible, specification parameters, and product features, this product may adjust and revise the text description, image effects, and other content on the above pages in real time to match the actual product performance, specifications, indices, components and other information. Due to real-time changes in product batches and production supply factors, the specific interpretation rights belong to the internal research room of the product. 4. This test list is related to the product models and software versions. Software upgrade may affect compatibility, The product may be compatible with more models in actual use.