S2(3-man intercom) Riding motorcycle helmet headphones Multiple calls

Main features.
1.Cell phone answer calls, play MP3 music, GPS playback, with FM radio function
2. Using DSP echo cancellation and noise suppression technology, high speed to ensure clear voice quality.
3. With CVC8.0 call noise reduction function.
4. Support Bluetooth to connect 2 cell phones at the same time.
5. Support with any brand of other helmet bluetooth headset (such as SENA, cardo, Freedconn ...) Pairing and intercom
6. Bluetooth cell phone, intercom, stereo music automatic switching.
7. Button panel is waterproof and sunproof, durable design
8. Easy to install: the package provides the required clips and tools, you can easily install the motorcycle bluetooth headset on most helmets, switching the microphone according to the helmet, including full helmets, half helmets, open face helmets, 3/4 face helmets, off-road helmets and retro helmets
9.Connects to intercom via K Cable 
10.The best feature is the music sharing function, share music anytime and anywhere 

Specification.
1.Bluetooth: 5.1
2.Battery capacity: 800mAh,3.7V
3.Intercom number: support 2-6 people intercom, intercom distance 1200 meters, 6 people talking at the same time;
4. Intercom distance: 1200 meters
5. Support: HSP HFP A2DP AGHSP
6. Charging time: about 2-3 hours, with battery power display function and reminder function.
7. Standby time: 400 hours
8.Working time: 22 hours
9.Music time: 70 hours
10.Main unit size: 85*45*23MM
11. Waterproof: IP67

Packing list: 1 Bluetooth host
1 stereo headset
1 USB charging cable: 2 helmet clips (screw clip + velcro clip)
2 microphones (hard microphone and soft microphone)
1 user manual