ITEM NAME:BT17 Bluetooth Motor Helmet Headset Motorcycle Helmet Handsfree Earphones Product Description Description: BT17 Bluetooth 5.0+EDR Motor Helmet Headset Waterproof Wireless Handsfree Earphones for Motorcycle Helmet Intercom Specification: Product model: BT17 Answering method: automatic/manual Bluetooth version: V5.0+EDR Frequency range: 2.402GHz-2.480GHz Transmission distance: 10-12m (The transmission distance may vary due to environmental factors and mobile Bluetooth devices) Lithium battery: 3.7V/800mAh Charging time: ≠¤ 1 hour Standby time: ≠¤ 48 hours Continuous working time: ≠¤ 10 hours Driver unit: 50mm 32 ohm 0.5W Response frequency: 180Hz-2000kHz Sound to noise ratio: >80dB Distortion:
