3in1 Power Bank 4000mah Multi-fuction Li-Polymer Battery Portable Power Bank Speaker Backup Battery Charger with Phone Stand for iPhones, Samsung, HTC, Motorola, Nokia Smartphones (Red) Capacity:4000mAh, Speaker Power:2W, Speaker Frequency range:200-20000Hz Battery Type: Li-Polymer Battery, Outport:DC 5V 1A, Input:DC 5V 1A Socket Type: USB, Shell material : PC + Rubber , Certifications:CE,FCC,ROHS Accessories: 1 cable with all smartphone connectors & 1 audio cable Smartphones, MP3/MP4, PSD/NDS