100% brand new and high quality. Hands-free calls, speak freely. TF card play, USB play, super decoding. HD Acoustic Sound : Two 8W strong drivers and passive radiator provide high definition audio and clarity at any listening level. Connection mode: the Bluetooth connection / 3.5 audio interface.
Specification:
Interface type: USB + TF card Battery capacity: 2400 mAH Frequency response range: 30 HZ - 20 KHZ Output power: 16W Working voltage: DV 7.4 v Battery capacity: 2400 mAH Playing time: 4 hours