INSMA P1 Active Noise Cancelling bluetooth Headphone Flexible Handsfree Binaural Call Wired Headset With HD Mic

Package Included: 1 x Headphone 1 x Charging Cable 1 x 3.5mm Audio Cable 1 x User Manual Specification: Product Name: ANC Headphone Brand: INSMA Model: P1 Size: 175x190mm / 6.88''x7.48'' Color: Black, Silver, Grey BT Version: V4.1 Frequency Range: 2.40-2.48GHZ Transceiver Distance: 10m BT Protocols: HFP v1.6/AVRCP v1.4/A2DP v1.2/DI v1.3/HSP v1.2 Speaker Diameter: 40mm Rated Power: 20mw Frequency Response: 20Hz-20000Hz Impedance: 3215% Sensitive: 1053db at 1000Hz in average Rated Capacity: 480mAh, 0.37Wh Working Time: 19-25 Hours Standby Time: 400 Hours Charging Time: 2-3 Hours Battery Life: 300 Cycles Feature: -ANC: Active noise cancelling, effective noise reduction. -Handsfree: Support HD voice calling. -Auto Reconnect: Auto-reconnect after power on if connected before. -Rotable and retractable, suitable for most of head style of people, comfortable wearing. -The world's first CD pattern curved surface, unique and stylish.