Item Type: Bluetooth Speaker Material: ABS Weight: Approx. 285g/ 10.1oz Rated Power: 3W+3W Separation Degree: 80dB Distortion: 1% (3.7V, 1kHz, 1W) SNR: 83dB Bluetooth Version: 4.1 Operating Voltage: DC3.7V Charging Voltage: DC5.0V Storage Type: Memory card Battery: 1500mAh lithium battery (shipped with battery) Display: LED display Speakers: 2 x1.5in, 1x passive radiator Audio Format: MP3/WMA/WAV How to use 1. First, start the machine and enter Bluetooth mode with voice prompt. At this time, the speaker is in the state of waiting for pairing connection, and only in this state can it be paired with and connected to the Bluetooth speaker. 2. Mobile connectivity Step 1: In the mobile phone Settings, turn on the Bluetooth setting switch and click Scan to find the device. Step 2: When the available device displays the character "Rolton", it means that the phone has found the Bluetooth speaker. Click "Rolton" to enter the pairing mode Sep 3: Mobile phone and sound paired successfully, there will be a voice prompt, and display has been connected.1Multifunctional music player integrates with wireless BT speakers, FM radio, and memory card music player. 2Compatible with smart phones, tablets and laptops, bringing you a lot of fun and convenience. 3Insert the memory card, which will support the recording function and play the recording files through the dual 3W HD stereo speakers. 4LED display can clearly display the speaker's information and status, more convenient to use. 5Using HD microphone, it can support hands-free calling, easy to use when cooking, driving or doing other things. 6LED flashlight design makes you can use it at night to help you identify the direction.1 x Bluetooth Speaker 1 x Sling 1 x USB Cable 1 x Instruction