Medium Speaker and enough Big Sound The LarKoo SDH-201 Ultra Portable Bluetooth Wireless Speaker is Dual Powerful Stereo Speakers with Built-in Microphone Support Any Bluetooth Enabled Devices - Pure music,perfect to enjoy, High-fidelity sound,Stereo speakers,built-in resonanceradiator deviceequipped achieve a more shocking extremely super bass effect. Enjoy music anywhere you want The LarKoo SDH-201 is so small it easily slips into a backpack or purse without looking or feeling bulky. The Rectangular appearance makes the SDH-201 easy to hold and protects it from impacts, it is one of the most portable speakers available. Hand-free call If a call comes through during a music-session, the music is instantly paused to allow for the conversation; as soon as the conversation is over, the portable Bluetooth speaker brings the music back to life. Strong Connections The LarKoo SDH-201 features a very strong Bluetooth 3.0 connection as well as Easy Bluetooth connection works with all Bluetooth-enabled devices: Smart Phones, Pads, Laptops and Desktops, MP3 & DVD players, supports TF Card play etc.; 3.5mm audio jack for non-Bluetooth devices. Specifications It can support music formats: MP3, WMA,WAV, PE,FLAC Lithium-ion battery: 800mAh enough Bluetooth protocol: version 3.0 + EDR Bluetooth range: 33ft/10M Input sensitivity: 300 MW Rated Power: 3W FM Input ports: Micro USB, 3.5mm AUX port FM Radio Function Battery can support play time: 3-4hours; Charging time:3-5hours Weight: 12oz FM Radio Function Products Dimensions: 2.36 x 1.77 x 6.7 inch / 60 x 45 x 170 mm Package size: 2.77 x 1.98 x 7.91 inch / 70 x 50 x 200 mm Package Contents 1x SDH-201 portable Bluetooth speaker 1x USB charging cable 1x 3.5mm audio cable