Motorcycle Helmet BT Headset, Wireless Waterproof Noise Cancellation BT Helmet Intercom with black

Features: Multi-User Interaction: The helmet intercom headset allows for easy and efficient wireless communication among multiple users, making it an ideal tool for outdoor activities, professional use, or specific work scenarios. All-in-One o Solution: This motorcycle helmet headset is more than just a communication device.  It also offers o playback, voice navigation, and hands-free calling, making it a versatile tool for all your o needs in various scenarios. Easy Connectivity: The BT feature of the headset allows for quick and easy pairing with other devices, ensuring you stay connected without any hassle. Waterproof Design: With its superior waterproof design, the headset is built to withstand harsh outdoor conditions, making it a reliable choice for work or sports activities. Clear Sound: Say goodbye to background noise.  With advanced noise reduction technology, this BT headset ensures you enjoy clear communication, no matter where you are. Specifications: Item Name: Helmet BT Headset Main Material: ABS, Silicone Speaker Diameter: 40MM Speaker Impedance: 32 Ohm Speaker Response Frequency: 0-20KHz Microphone Diameter: 6.02.7 Microphone Sensitivity: -38+-3db Microphone Impedance: 2.2K Wireless Solution: BT 5.2 Power Supply Voltage: VDD3.8V Supported BT Protocols: A2DP, AVRCP, HSHF Operating Current: less than 30MA Standby Current: less than 3MA Temperature Range: -10~60 celsius Intercom Wireless Transmission Range: 1000M Transmission Power: 20db Sensitivity: -85db Frequency Range: 2.402GHZ-2.480GHZ External Interface: Type-C o Signal-to-Noise Ratio: more than 60db Distortion: less than 0.01percent Chip: QCC3024 Phone Call Distance: 10M Standby Time: Approximately 260 hours Working Time: Approximately 25 hours Battery: 850mAh Charging Time: Approximately 2.5 hours Charging Voltage: 5V Charging Current: 470mA Main Functions: Intercom auto-reconnect, phone call, voice assistant, ambient light Color: Black Size: 81*53*21mm Package Information: Package Size: 11.7*9.5*6cm Package Weight: 146g Package List: 1 * Host 1 * Changeable Hard Mic and Soft Mic Speakers 1 * Fixed Base  1 * Hook & Loop Kit 1 * Sticker 1 * Type-C Charging Cable 1 * User Manual