Specifications: Retro style, mini and compact size, powerful sound quality. With Bluetooth 4.1 module, fast and stable transmission, easy to use. Designed with the indicator light: blue light flashing (to be connected), blue light always on (connected), red light (charging). Item Name: Bluetooth Speaker Material: Metal Speaker Power: 5W Battery Capacity: 1200mAh (Included) Bluetooth Version: 4.1 Charging Time: 2-3 Hours Charging Requirement: DC 5V/1-2A Memory Card Slot: TF Card (Not Included) Charging Interface: Micro USB Features: Retro, Mini, Wireless Size: 9.5cm x 6cm x 7cm/3.74" x 2.36" x 2.76" (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 Speaker