B1 Multifunctional Wireless Bluetooth Speaker with Mic LED Display Support Hands-free Answer Phone FM Radio TF Card (White)<br>1. The latest Bluetooth solutions、 receiving distance 15 meters straight、 clear hands-free calling. <br>2. Support TF card、 USB memory music playback. <br>3. Support 3.5mm audio input line in. <br>4. Support MP3、 WMA、 WAV、 format、 supports lossless music format APE、 FLAC. <br>5. With FM radio、 built-in FM antenna、 FM frequency tuning function support. <br>6. Hidden LED display working status. <br>7. Supports Bluetooth hands-free calling and call-back function. <br>8. The dual speakers、 large diaphragm、 (5W * 2 amplifier IC、 superior sound quality. <br>9. High-capacity detachable battery: 2000mAh enough to allow you to enjoy your music in the ocean.<br><br>Transmission distance: W/O obstacles 15mModel: B1Material: ABSCharging Current: 1000mAhPower Source: USB、 BatteryConnection: BluetoothWorking Voltage: 3.5-4.2VBluetooth Version: V2.1Supports: Microphone、 Bluetooth、 TF Card Music Playing、 HandsfreeCharging Time: 2-3 hoursWeight: 571gBattery Capacity: 2000mAhSNR: >=90dbPackage Contents: 1 x Speaker、 1 x User Manual、 1 x USB cable、 1 x AUX CableBattery Types: Lithium BatteryCharging Voltage: DC 5VFrequency: 80Hz-18kHzPower Output: 3.5W x 2Size: 19.5x70.5x65cmPlayer Format: MP3、 WMA、 WAV、 FLAC、 APESensitivity: 80dBDesign: PortableFunctions: FM RadioInterface: TF Card Slot、 3.5mm Audio、 Micro USB、 USBWo