100% brand new and high quality Hands-free calls, speak freely TF card play, super decoding 50 loudspeakers, 3D stereo sound, shocked hearing Connection mode: the Bluetooth connection / 3.5 audio interface Interface type: USB + TF card Battery capacity: 400 MAH Frequency response range: 100 HZ – 20 KHZ Output power: 3 w Working voltage: DV 5 v Signal to noise ratio greater than or equal to 90 db In magnetic trumpet: 50 mm Battery capacity: 400 ml Playing time: 2 hours Product size: 75 * 75 * 80.5 mm 1 x H9 bluetooth speaker 1 x USB cable 1 x Retail box Brand HOPESTAR SKU 100102464_NP-1020361235 Model H-9