Product features:

1. Support wirelessly streaming the music or Internet radio from the smart phone to the car speakers.
2. The car-mounted base of Bluetooth headset is built-in with FM transmitter for wireless connection to car radio.
3. Cigarette Lighter connector to USB output of 5V / 2A
4. Smart design Bluetooth headset for incoming call. 

• Voice control: Say “Yes” to answer the incoming call and “No” to deny it.
• Pick up the headset for privacy-sensitive call and put back to the holding base for hanging up.
• Press the top button on the headset to answer the incoming call and long press for 2 seconds to hang up.

Technical specs. of Bluetooth headset :

Chipset: CSR
Working voltage: 3.3-5.V
Working electric current: ≤18mA
Stand-by electric current: ≤1mA 
Wireless coverage: ≤10m
Wireless power: Class2,<4dBm
Bluetooth Version: BT4.1 compatible with V4.0,V3.0,V2.1+EDR,V2.0,V1.2, V1.1
Protocols supported: HSP,HFP,A2DP,AVRCP,battery volume indicator on IOS and some of Android phones
Other features: multi-points connection supported,CVC noise reduction
Working frequency: 2.401-2.480GHz (2.4GHz ISM)
RX Sensitivity: <-82dBm.BER<0.1%
Product Size: L 51.5mm * W 17.5mm * H 8mm
Product weight: ≤10g(gram)
Power charging port: Contact type
Battery: 3.7V   50MA-60MA polymer lithium
Power input: 5V/100mA
Button: 1(multi-function)
Battery life: 2-3 hours
Stand by time: 100 hours
Charging time: 1 hour
Charging indication: LED in Red when charging,in blue when full charge
Battery life indication: 100%-15% in blue light,15%-5% in red light
 
Technical Specs. of car-docking base for the Headset :
Input voltage: 8-30V
Output voltage: 5V/2A
FM span: 87.5-108.0MHz (divided by 0.1MHz)
FM coverage: ≤5m
Power charging port: car cigarette lighter port
Power output port: USB
Connector for headset: Magnetic absorption tank