EJEAS V4C Plus Professional Football Referee Bluetooth Intercom Supports 4 Referees Talking at The Same Time V4C Plus Parameter Overview 1. Real Time Intercom for 4 Referee 2. 800m Intercom Distance (2 Referee) 3. 1500m Intercom Distance (4 Referee) 4. Qualcomm Bluetooth 5.1 Chip 5. 750mAh Battery Capacity 6. Voice Assistant 7. CVC Noise Reduction Technology 8. FM Radio 9. IP 65 Waterproof Voice Assistant After the intercom is connected to the mobile phone, turn on the voice assistant function of the mobile phone, and press and hold the "phone button" of the intercom for one second to control the intercom with voice commands. Qualcomm Bluetooth 5.1 Chip Bluetooth 5.1 match with CRS Bluetooth enhanced speed rate, it can greatly improve the data transmission rate of Bluetooth as well as achieve low power consumption，better sound quality and easier connection. CVC Noise Reduction Technology EJEAS V4C Plus bluetooth referee intercom uses advanced CVC noise reduction technology to eliminate the echo and environmental noise of the call, so that the sound you hear is more 3D, clear and stable. IP65 Waterproof Durable design, IP65 waterproof, dustproof and so on, No matter the sunny day, the rainy day, the snowy day, you do not have to worry about the machine breakdown (Except storm, Blizzard) 750mAh Battery Capacity Built-in rechargeable lithium-ion battery, The charging time is about 3h, after fully charged, the call/music play time is as long as 24h,Standby time up to 260 hours, can meet the needs of long-time game communication. Bluetooth Wireless Connection Strong shake stereo music / audio function (using A2DP transmission phone / MP3 / GPS) Standard Bluetooth technology, fully compatible with other Bluetooth devices, such as mobile phone, MP4, GPS, Bluetooth intercom, etc. V4 Plus V6 Pro Q2 Q7 V6C E1+ Add to Cart Buying Options Buying Options Buying Options Add to Cart Buying Options Customer Reviews 4.1 out of 5 stars 1,852 4.1 out of 5 stars 1,852 4.0 out of 5 stars 871 4.0 out of 5 stars 871 4.0 out of 5 stars 131 — Price $59.99$59.99 — no data — no data — no data $39.99$39.99 — no data Intercom Mode 4 people talk at the same time 6 people pair, 2 people intercom 2 people intercom 7 people pair, 2 people intercom 6 people pair, 2 people intercom Bluetooth Headset Bluetooth Version Bluetooth 5.1 Bluetooth 3.0 Bluetooth 5.1 Bluetooth 5.1 Bluetooth 3.0 Bluetooth 5.1 Battery Capacity 750mAh 850mAh 750mAh 750mAh 850mAh 360mAh Call Time 24h 12h 24h 22h 12h 19h Noise Reduction Method CVC noise reduction DSP noise reduction CVC noise reduction CVC noise reduction DSP noise reduction CVC noise reduction FM Radio ✓ X ✓ ✓ X X Waterproof Level IP65 Waterproof IP65 Waterproof IP65 Waterproof IP65 Waterproof IP65 Waterproof IP65 Waterproof Intercom Distance 1500M 1200M 800M 800M 1200M / motorcycle Bluetooth headset, helmet Bluetooth headset, Bluetooth motorcycle headset, Bluetooth helmet headset, motorcycle Bluetooth communication system, motorcycle helmet communication system, motorcycle intercom, helmet intercom, Bluetooth headset for motorcycle helmet, snowmobile Bluetooth intercom motorcycle Bluetooth headset, helmet Bluetooth headset, Bluetooth motorcycle headset, Bluetooth helmet headset, motorcycle Bluetooth communication system, motorcycle helmet communication system, motorcycle intercom, helmet intercom, Bluetooth headset for motorcycle helmet, snowmobile Bluetooth intercom