You can enjoy pure and high-fidelity sound effect because the speaker is characterized by intelligent noise reduction. Quick and stable transmission is supported by the intelligent Bluetooth-compatible 4.2 chip. Made of ABS, the speaker is eco-friendly and durable to use. Fashionable appearance brings you endless fun on the trip. The length of this product is 12cm, the width is 8cm and the height is 3.5cm. It has Bluetooth-compatible wireless connection function, mobile phone speaker function, one-key dialing function. It supports most mobile phones, Bluetooth-compatible phones, tablets, for iPads, for mac air, mp3 players, personal computers, laptops and all other Bluetooth-compatible devices. You can use it at home, office, car, etc. Item Name: Speaker Material: ABS Color: Blue, Black, Red, Green, Silver Gray Bluetooth-compatible Protocol: 4.2 Battery Capacity: 500mAh (Included) Play Time: 3 Hours Features: Portable, Support U Disk, Wireless Size Details: 12cm x 8cm x 3.5cm/4.72" x 3.15" x 1.38" (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 Speaker 1 x Charging Cable 1 x User Manual