It is 2.1 channel iPod docking audio system with built-in woofer. It comes with a detachable BluePin. BluePin is a combination of Bluetooth TX and Bluetooth RX, whereby a user can connect BluePin to his or her BT mobile phone or BT headset. With this BluePin, the unit can turn into a speakerphone easily or transmit audio wirelessly to a BT headset. It also has a built-in digital-synthesized FM radio tuner with ability to preset 20 radio stations. It uses a negative LCD with white backlight for display. It also supports AUX input to play and listen to other audio devices with 3.5mm output jack.

Features

• Enjoy rich sound from your iPod

• Powerful 45WRMs / 90WPEAK output with built-in woofer

• Beat-sensitive mood light (blue) with on/off button

• Play and listen to your music wirelessly with Bluetooth wireless technology

• Plays and charges your iPod

• FM stereo radio with PLL digital tuning technology

• Preset up to 20 radio stations

• Digital clock display

• Auxiliary line input for any audio devices with 3.5mm jack

• 3.5mm stereo headphone jack

• Negative LCD display with white backlight

• Blue LED power and speakerphone indicators

• Remote control
  

• 2.1ch audio system

• BluePinTM audio transmitter / receiver

• Remote control (battery included)

• AC adapter (UL/cUL listed)

• Dock adapters

• Instruction manual

Bluepin Features

Built-in microphone for wireless speaker phone capability.
•     Play your stereo Bluetooth MP3, mobile phone, or laptop music wirelessly on the i399
•     Listen to your music on a Bluetooth audio device (stereo headsets, speakers, etc.)
•     Supports HSP, HFP, A2DP, and AVRCP
•     Compliant with Bluetooth V2.0
•     Bluetooth Class 1: Wireless connection up to 300ft (100m)

•     BluePin = Interchangeable with Bluetooth TX & RX mode
•     Bluetooth Core: Bluetooth V2.0 compliant
•     Bluetooth Profile: A2DP, AVRCP, HFP, HSP
•     RF power level: Class 1, 100m