Thank you for coming to our shop, I hope it is to your satisfaction Category: Bluetooth Speaker Material: ABS, Aluminum Alloy Bluetooth: V4.2 TF Card: Support Speaker Output: 5W Distortion: ≤5 Percent Signal And Noise: 95DB Bluetooth Communication Protocol: A2DP, AVRCP, HFP, HSP Battery: Built-in Battery or 450mAh (Contains) Charging Voltage: DC 5V Charging Time: About 3 Hours Talk Time: About 5 Hours Play Time: About 5 Hours Peculiarity: Portable, Convenient, Pocket-sized, Stereo Bass Player Size: 9.1cm x 4.8cm x 2cm or 3.58" x 1.89" x 0.79" (Approx.) Instructions: Bluetooth 4.2 wireless technology can ensure high-quality strong signal transmission and provide high-fidelity stereo music. The product has high-quality speakers and vibration diaphragms, which can provide clean and excellent sound quality. Built-in high-capacity 450mAh rechargeable battery, which can provide about 4 hours of working time. This portable bluetooth speaker is lightweight and compact, allowing you to carry it with you, and suitable for more Case. Kindly Remind: Due to light and display, there may be slight differences between the picture and the actual color of the product. The color is subject to the goods received. In addition, please allow slight size difference due to manual measurement. High quality, assured choice is guaranteed Package Contains: 1 x Bluetooth Speaker 1 x USB Cable