Welcome to the eZeller Stores . If you have questions about our products, you can always contact us. We're here to help. If the product is damaged during transport or has other problems, please contact us. We will solve the problem for you and your shopping experience should be perfect every time. Have a nice day. (Smile) Specification: Brand Name : IVON Color：Wooden Function: Bluetooth 4.0,TF Slot Bluetooth specification: Bluetooth 4.0 Wireless transmission range: 10M Battery capacity: 1200mAh Built-in battery voltage: 3.7V Normal volume playback: 4-5Hours Speaker Specifications: 2×2 Speaker power: 7 W×2 Frequency response: 200Hz-20KHz Charging voltage: 5V/1A Gross Weight:0.7KG Product Size:25×8×8cm What's in the box? Bluetooth Stereo speaker × 1 Micro USB Charging Cable × 1 Retail Box ×1 Handling and Packing: Packing done with good amount of care so that you get the item in good condition. it is your responsibility to ensure that the packet received is in non-tampered condition. If the pack is open please refuse to receive the order and return it with same logistics person 100% Tested product.