Color: White + Grey - Model: DA602 - Compatible System: Windows 2000 / XP / Vista - Built-in 40mm loudspeaker to enjoy music & chat - Can be long-range control music play - Transmission range: 15~25m - Working time: 6~8 hours - Working voltage: 3.7V - Working current: 50mA - Frequency response: 20Hz~20000Hz - Carrier frequency: 2400MHz~2483.5MHz - SNR: 90dB - Modulation: GFSK - 360 degree receiving - Built-in 300mAh rechargeable Li-battery - Fashion headset for chat watching movies playing games and music enjoyment etc. - Accessories: - 1 x 2.4GHz USB transmitter - 1 x USB charging cable (102cm length) - 1 x Chinese manual