Wireless Headphones Bluetooth 5.0 Mic Headset Noise Cancelling For Truck Driver Product Features: BLUETOOTH 5.0 HEADSET: The latest true Bluetooth 5.0 smart IC provides fast and stable pairing with any 2 Bluetooth devices simultaneously. Lower power consumption, stronger signal. FREE TO TALK: M91 features enhanced extreme noise suppression technology to knock out the most aggressive noise. Provide you crystal-clear conversations even in noisy environments. EASY TO USE: Ergonomic separate power, mute, and volume buttons make going hands-free more enjoyable. Music enjoying and voice control meet all your daily needs. COMFORT THAT LASTS: Flexible headband and enlarged skin-friendly earpad making you all-day comfortable from the first call of the day to the last. Enjoy the freedom of wireless for calling. ALL-DAY CONVERSATIONS: Last a full day on the move with up to 40 hours talk time. 600 hours standby time on a 2 hours single charge. Product Specification: Type: Headset Bluetooth Version：V5.0 Frequency Range：2.402GHz-2.480GHz Transmission Distance：10 meters (33 feet) Bluetooth Protocol：HFP/HSP/A2DP/AVRCP Battery Specification：400mah rechargeable lithium battery Charging Time：2H Standby Time：600H Working Time：About 40H Charging Power Supply：5VDC, 100-240V AC adapter, ≥ 500mA Working Temperature：- 10-55 ℃ Package Included： 1 * Headset 1 * USB Cable 1 * User Manual