WUNONG-AE 303B Wireless Headset

Model Number: 303B, Bluetooth Version: Bluetooth 4.0, Bluetooth Protocol: HFP, HSP, A2DP, AVRCP,

Operation Range: up to 10 meters (straight line distance), Speaker Speaker Impedance: 32 ohm, Speaker Frequency Range: 20~20KHz,

MIC Sensitivity: -58dB+2dB, Operating Voltage: 4.5 V, Battery: rechargeable 3.7 V / 450mAH lithium battery, Music Playing Time: about 20 hours,

Talking Time: about 30 hours,Standby Time: about 135 hours,Charging Time: about 4-5 hours,Interface: USB Port,

Color: Black,Item Size: Approx. 17 * 16 * 4.5cm / 6.69 * 6.30 * 1.77in, Item Weight: Approx. 181g / 6.38oz,