Brand N/A Model Z-12 Type Mini Colors Red + silver Quantity 1 Internal Memory No Memory Card Type TF card and USB flash drive Max Extended Capacity 16GB Media Format MP3 / MP4 Total Power 3W Signal to Noise Ratio(SNR) 45dB Channels 1 Interface 1 x 3.5mm headset jack 1 x TF card slot 1 x USB 2.0 port 1 x Mini USB port Radio FM Radio FM Frequency 87~108MHz Power Supply Built-in Rechargeable Battery Built-in Battery 400mAh Other Features With strap for easy carrying; Super mini size and lightweight; Ideal for outdoor activities to enjoy music; Built-in rechargeable battery convenient for long time use. Packing List 1 x Speaker 1 x Strap (18cm) 1 x Mini USB to USB / 3.5mm cable (50cm)