Features: Perfect sound quality and effect, allow you enjoy unfettered music anywhere. With Mic, support hands-free phone call. Support TF card function, max 32GB. Excellent for outdoor sport and exercise and travel and so on. Compact and lightweight, portable to carry. Descriptions: Bluetooth: 4.1+ESR Frequency range: 87.5-108MHZ Horn: 4ohm 3W Sensitivity: 82±3dB Distortion rate: 5% Battery: 1100mAh Music format support: MP3 WAV WMA TF card: support max 32G Input: 5V-1A Charging time: 2-3hours Playing time: about 6 hours Specifications: Material: TPU and plastic Size: 245x225x60mm Color: black, gray, camouflage, blue, red Package included: 1 x Bluetooth Speaker 1 x Charging Cable 1 x User Manual Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!