Main Features:
● Connected GPS and support Bluetooth pairing， is convenient to communicate with other drivers within 500m and protect your safe.
● Phone call and music can switch automatically， Support voice and last number dial， answer and hang up call.
● Support waterproof， it could used in underwater.
● DSP noise reduction function， make sure call quality is clear when car running at high speed.

Specifications:
BT Version: 2.1 + EDR
Frequency: 2.4GHz
Supports: A2DP and AVRCP
Operating Range: Up to 10m for cell phone， up to 500m for intercom function
Battery Type: Rechargeable Polymer 300mAh
Charging Time: About 4 hours
Standby Time: Up to 300 hours
Talk Time: 10 hours for phone， 5 hours for intercom
Power Adaptor: DC5V 500mA

Note: The helmet in the picture is not included. Product weight: 0.0440 kg
Package weight: 0.2910 kg
Package Size(L x W x H): 12.00 x 4.50 x 18.00 cm / 4.72 x 1.77 x 7.09 inches Package Contents: 1 x Bluetooth Intercom， 1 x USB Cable， 1 x Screw Driver， 1 x Power Adaptor， 4 x Adhesive Earphone Pad， 1 x Ear Speaker and Microphone Headset， 1 x Headset Clip， 1 x English User Manual