Description: With intimate lanyard design, the speaker can be hung on a backpack or bicycle at will. The speaker has 360 degree shocking surround sound and heavy bass, which allows you to enjoy wonderful music experience. It is made of high-quality ABS material, which is lightweight and portable. The smooth line design makes it simple and fashionable. The length of the product is 7.6cm, the width is 7.6cm and the height is 3.1cm. It is fully compatible with wireless connection, 99 percent of electronic products (for WP/for Android/for iOS) systems on the market, and all kinds of APP. High volume can be used for real-time voice broadcasting. Item Name: Bluetooth-compatible Speaker Material: ABS Model: M1 Bluetooth-compatible Version: 5.0 Battery Capacity: 1000mAh (Included) Standby Time: 72 Hours Play Duration: 8-10 Hours Charging Time: About 4 Hours Output Power: 5W Speaker Diameter: 52mm Frequency Response: 80-20KHZ Transmission Range: within 20m Operating Temperature: -20 Degrees Celsius - 60 Degrees Celsius Features: Portable, Surround Sound, High Volume Size Details: 7.6cm x 7.6cm x 3.1cm/2.99" x 2.99" x 1.22" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bluetooth-compatible Speaker 1 x Charging Cable 1 x User Manual With intimate lanyard design, the speaker can be hung on a backpack or bicycle at will. The speaker has 360 degree shocking surround sound and heavy bass, which allows you to enjoy wonderful music experience. It is made of high-quality ABS material, which is lightweight and portable. The smooth line design makes it simple and fashionable. The length of the product is 7.6cm, the width is 7.6cm and the height is 3.1cm. It is fully compatible with wireless connection, 99 percent of electronic products (for WP/for Android/for iOS) systems on the market, and all kinds of APP. High volume can be used for real-time voice broadcasting.