Model: BQ-268 - Type: Headband - Color: Blue - Driver unit: 40mm - Frequency response: 20HZ~20kHZ - Impedance: 32 ohm - Connector: 3.5mm jack - Cord length: 150cm - Supports MP3 / WMA formats - Supports TF card up to 16 GB - FM frequency: 88~108MHz supports auto search channel - Supports Lyrics synchronized display - With volume control and 3.5mm audio jack - With line in port and line out port allows to connect another earphone to share your music with your friends - Build in 1000mAh lithium battery works for over 10 hours - Recharged by USB port - Packing list: - 1 x Wireless Headphone - 1 x USB power cable (80cm length) - 1 x Audio cable (150cm length)