Need more than 1? Choose the number of sets in the dropdown Main Features Headphone Parameters: Bluetooth Version: V5.0 + Edr Wireless Frequency: 2.4Ghz Protocol Support: Hfp1.7 / A2dp1.3 //Avrcp1.6/Spp1.2Andpbap1.2, Bdr / Ble Transmission Distance: 10 Meters Battery Capacity: 110 Mah Charging Voltage / Current: 5V / 1A Play/Talk Time: About 10 Hours Of Charging Time: 2 Hours Of Standby Time: 120 Hours Speaker Impedance: 32 Microphone Sensitivity 8Mm: -42Db Working Temperature: -10-50 Ac, Net Weight: 4G* 2 2, Load Box Parameters: Input Voltage / Current: 5 V / 1A Battery Capacity: 950 Mah Product Features: 1; Bluetooth 5.0 Chip, 2; Ipx5 Waterproof, Anti-Sweat, Anti-Corrosion, Not Afraid Of Sweat Erosion On The Headphones, Long-Term Anti-Sweat, Comfortable To Wear. 3; The Left And Right Ears Can Be Used Separately, And The Left Side Can Be Designed Separately. 4; Ergonomic Design, Semi-Inlet Comfort And Strength, Dexterity Support Decompression, Ergonomic Design, Do Not Pick The Ear Does Not Increase The Ears. 5; Automatically Start The Internet, Delete The Walking Link, And Automatically Pair. Product List: Headphones X2 Charging Box X1 Charging Line X1 Earmuffs X4 Manual X1 Product Use (1). Led Indication Status Pairing Status: Red And Blue Lights Flash Alternately Pairing Is Successful: All Lights Are Off Team Status: Blue Light Slow Flashing (2). Button Function Operation Power On: Press And Hold The Multi-Function Button For About 3 Seconds To Turn On Shut Down: Press And Hold The Multi-Function Button For About 3 Seconds To Turn Off Answer/Hang Up: Short Press Function Key To Answer And Hang Up Call Rejection: When The Call Comes In, The Fast Double-Touch Multi-Function Button Is Released To Realize The Call Rejection. The Short Press Of The Side Button Is For Volume Addition And