ER9 Hands Free MP3 V4.2 Adapter Wireless FM Transmitter Headset Earphone Car Charger

• The device can detect battery`s voltage
• Supports 1. Bluetooth headset to answer, high-definition call
• 2. Bluetooth hands-free calls, built-in microphone, safe answer the phone
• 3.cell phone A2DP function, connect directly by Bluetooth and play high-quality mobile music
• Mobile phone can be connected automatically when the device is powered on
• Support USB flash drive to play MP3 / WMA format music
• Car charger probably 5V / 3.1A output, you can charge for handheld devices.
• Bluetooth headset charging function, use while charging
• Independent power switch so it is ready to turn off the power , do not loss the car battery

Specification:

• Bluetooth VersionV4.2
• Limit Voltage9-26V
• Rated Working Voltage12V-24V
• Sensitivity-42db / 3 db
• Working Current45mA(max)
• Stand by Current25mA(max)
• Frequency2.402-2.480 ghz
• Bluetooth Effective Range10 meters
• Sensitivity-92 dBm
• RF Output4 dBm
• FM Frequency87.5MHz-108.0MHz
• Transmitted Power87dBuv / 107dBuv

• Single package size: 12.2X11X4.1 cm
• Single gross weight:0.1 kg