D2 Bluetooth intercom helmet Bluetooth headset
Bluetooth3.0 HSP, HFP, A2DP, AVRC profiles supported
Calls handling
500M full duplex intercom4 buttons operation
Aux audio input
Firmware USB upgrade available
Calls, music volume up/down independent and adjustable
Full weather protected, better waterproof performance
It can pair "rider to rider" or "rider to pillion". Can pair 11 intercoms at a time, and easily switch to any 2 of them
Works with any Bluetooth equipped mobile phone, GPS or MP3 Stereo music CD player / iPod and etc. By connecting the headphone wires directly ( without main unit )
Plastic + Rubber button, more stable structure, better waterproof performance
Wireless hands free communication for motorcyclist
Safe driving while talking with friends
Can be used as a Bluetooth headset and a wireless music headset while you're not riding
Applicable: All cellphones with BT function and all helmets

D2 Technical Specifications:
1) Bluetooth version: Bluetooth 3.0
2) Chip: CSR BlueCore5MM
3) Model: DK_218M
4) Intercom transmission distance: 500m
5) Mobile Phone Connection transmitting range: 10m
5) RF Frequency: 2.4GHZ
6) Bluetooth RF Spec: Class 1
7) RF Power:16dB
8) Standby Time:100 hours
9) Cell Phone Talk Time: 8 hours
10) Intercom Talk Time: 8 hours
11) Music Play Time: 8 hours
12) Charge Time: 3 Hours
13) Battery: DC5.0V / 500mA
14) Battery Type: Li-polymer Battery 500mAh
15) Working Voltage: 3.3 - 4.2V
16) Color: Black
17) Applicable model: Compatible with all major brands of Bluetooth mobile phone and Bluetooth GPS

D2 Functions:
1. Intercom:
1) Support 500 meters maximum range full duplex intercom between two Bluetooth headsets
2) With DPS wind noise suppression to ensure the crystal clear voice quality when speeding along the highway
3) Independent intercom volume control and memory
4) Voice volume adjusting automatically according to the motorcycle speed and ambient noise

2. Telecom Phone Calls Handling:
1) Bluetooth Headset, Hands Free, automatically switch seamlessly among Bluetooth mobile phone, intercom and stereo sources
2) Support voice dialing
3) Support last number redial
4) Call answer, reject and hang up functions supported
5) Hands-free volume control
6) Mobile phone highest priority
7) Support 500m range full duplex intercom
8) With DSP wind noise suppression to ensure the crystal clear voice quality when speeding along the highway
9) Intercom states prompts
10) Independent intercom volume control
11) Voice volume adjusting automatically according to the motorcycle speed and ambient noise

3. Stereo Music
1) Support the A2DP
2) Sharing the music from the mobile phone or other music sources with A2DP
3) Support music play, pause, playback and forward control with AVRCP
4) Independent stereo volume control and memory

4. GPS:
1) Supports connecting with the GPS navigation
2) Sharing the audio from GPS Navigation
3) Independent volume control

5. FM:
1) Frequency cover: 76-108MHz
2) FM audio station auto searching function
3) FM audio station memorize function
4) Independent FM volume control
5) FM audio can save Max and stations