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Pairing with 2 bluetooth enabled cell phones bluetooth rearview mirror 2.0+ EDR Caller ID display with FM transmitter Replace existing rearview mirror Bluetooth Handsfree Bluetooth car kits provide a safe and convenient solution to in car handsfree. You have the choice of either professional fully installable car kits, through to the portable plug in Bluetooth handsfree units with both providing an excellent handsfree experience. MJ-99 showing off a very cool Bluetooth enabled rearview mirror for cars that acts as a speakerphone and displays caller ID information on the mirror face itself. Model: MJ-99 Novel Design, Wide Applicability / Bluetooth Hands-free Car Kit (Rearview Mirror) Features: 1. Bluetooth Version: 2.0 range: 10m 2. Super bright LCM Caller ID and English Name display. 3. Independent FM wireless earphone for private conversation and FM transmitter (88MHZ-108MHZ), transfer the sound of music or phone talking voice to car stereo 4. DSP technology, Full Duplex, Noise Reduction& Echo suppression. Perfect phone talking effect 5.35 seconds voice record and playback for convenient message records 6. Built-in 1650mAh Li-ion battery provides 10 days standby time &11 hours phone talking 7. Built-in high intelligent microphone and powerful speaker. 8. Able to store 200 phone numbers (optional), and support sync phone book upload. Support Multiple-Bluetooth enabled cell phone pairing of one Bluetooth hands-free kits 9. Phone book/ incoming numbers Up and Down Scrolling& Dialing 10. Voice dialing, last call redialing, callback, answer /end/reject a call and Call switching & waiting 11. Car charger to connect the car kit DC 5V input port with cigar lighter or computer USB port for charging .USB port of the device for software update Number per ctn: 10 pcs / ctn N.W: 8.0kg / ctn G.W.:9.2kg / ctn Out carton size: 35.6X 32.2X 37.7 cm Acessories: English Instruction Manual /FM earphone/Car Charger (with USB cable )