Portable Wireless Bluetooth Speaker Rechargeable with Call, FM, TF Card, USB, AUXCharacteristics 1. Bluetooth 4.0 Technology, compatible with all bluetooth devices, connect your smartphone directlySuper sound quality2. High capacity rechargeable battery for playtimes based on music volume.3. Support TF card4. Light weight and portable, easy to carry and use in indoor and outdoor. SpecificationsMaterial: ABS PlasticColor: Blue, Red, Orange, Gray, BlackBluetooth Version: V3.0Audio port: TF / USB / AUXBattery: Rechargeable Lithium BatteryCharging voltage: DC 5 V / 500 mAhFM Frequency range: 87.5-108 MHzFrequency response: 100Hz ~ 16000HzSpeaker: Double Speakers 4Ω 3W diameter 40mmPlay time: up to 6 hoursBattery: Built-in battery (rechargeable)Function: TF Card, FM Radio, U DiskSupport: FM Radio, Hands-free Calling, TF Card, USB Disk, Aux InputDimensions: 20 cm x 6.5 cm x 4 cm (7.8x2.5x1.5 inch) Package Included: 1 X Bluetooth Speaker