Trucker Driver Headset bluetooth Wireless Earpiece Headphone Handsfree With Mic

Specification: Model Number:F-SL003 Color: Black bluetooth Version: 4.1 Wireless Working Range: 10M Frequency:2402MHz-2408MHz ISM Band Standby time: about 100 hours Charging voltage: 5V Charging time: <3 hours Microphone sensitivity: -45dB Talk time: 5 hours Working voltage: 3.3-4.2V Charging current: 95mA ? Note: The color of the item may vary slightly due to photography and different PC monitor,
and the size might be slightly errored due to manual measurement. Your kindly understanding would be appreciated ? Package Included: 1 x Trucker bluetooth headset 1 x Charging Cable 1 x User Manual ?