Model: BK-BS01 -Colors: Black - Quantity: 1 - Material: Aluminum alloy - Media Format: MP3 / WMA - Memory Card Type: TF - Max. Capacity: 32GB - Radio: FM Radio - Radio Frequency: 87~108MHz - Total Power: 5W - Signal to Noise Ratio (SNR): 95dB - Power Supply: Built-in rechargeable battery - Battery capacity: 650mAh - Distortion: 0.5% - Impedance: 3ohm - Portable and fashion design - Ripple Air flow protective cover mesh - Fully compatible with Android OS and iOS - Support ISDN sound card - FM Radio full-automatic searching - 3.5mm audio input - Low-power protection - Stereo sound effect: Mega - Bass / Middle / Treble Stereo - Packing list: - 1 x Speaker - 1 x English user manual - 1 x USB cable (72cm) - 1 x Audio cable (70cm)