Package includes: 1 x Speaker 1 x Micro USB cable Features: -Supports USB disk and TF card (up to 8GB,MP3 format) extended playing. -Compatible with various devices of Android, iOS and Windows system. -FM radio, this requires to connect the USB cable as the antenna. -Hands-free phone call. Use instructions: 1.Turn on the speaker, and it will automatically enter into bluetooth mode; 2.Turn on the bluetooth on your device, select the speaker “TS-S10U” and make it connected (there is a prompt sound indicating it was connected successfully). Note: -The color of the item may vary slightly due to photography and different PC monitor, and the size might be slightly errored due to manual measurement. Your kindly understanding would be appreciated. Specifications: Name: bluetooth Speaker Model: TS-S10U Material: Plastic Color: Random Size: 58x58x53mm/2.3”x2.3”x2.1” Power supply: Built-in Li-battery Charge time: Approx.1-2h Playing time: Approx.1-2h Charging voltage: DC 5V 500mA Working voltage: DC 3.7-4.2V Output power: 4┯ 3W bluetooth version: V2.1 bluetooth effective range: About 10m Frequency response: 20Hz-20KHz