1. Black Technology [Full-Color Touch Screen], ANC+ENC Dual-Mark Noise Reduction, Anc Active Noise Reduction, ENC Call Noise Reduction, Bluetooth 5.4 2. LED Full-Color Touch Screen, Rich Functions Can Be Controlled With One Finger, Lcd Full-Color Touch Screen, Call Answering, Music Playback, And Many Headphone Functions Are All Under Control 3. Personalized Screensaver Switching, Switch At Will 4. ANC Active Deep Noise Reduction, No More Noise, You Can Speak Freely. 35DB Smart Broadband Deep Noise Reduction Can Block Up To 99.44% Of External Noise, So You Can Enjoy Life Quietly Without Fear Of Noise. 5. ENC Call Noise Reduction, Every Whisper Is Clear. Enc Noise Cancellation Technology Allows You To Have Clear Calls And Conversations Even In A Noisy Environment. Description: 1. Bluetooth name: LX-10 2.IC model: Lanxun solution 5636F 3. Bluetooth version: Bluetooth V5.4 4. Support protocols: HFP, A2DP, , AVRCP 5. Bluetooth frequency: 2.402GHz-2.480GHz 6. Bluetooth audio decoding: AAC, 7. Transmission distance: open space without obstacles 10 meters 8. Headphone battery specifications: Lithium-ion polymer battery cell 501010/40mAh/3.7V 9. Charging compartment battery specifications: Lithium-ion polymer battery cell 701535/320mAh/3.7V 10. Single ear (connected to mobile phone Bluetooth): music playback time is about 4-5H, call time is about 4H 11. Number of times the charging case charges the earphones: 2-3 times (earphones*2) 12. It takes about 1.5H to fully charge the earphones 13. The charging time of the rechargeable speaker is about 1.5H 14. Standby time: (connected to mobile phone without playing music or making calls): about 120H Color: White Material: Plastic Package Contents: 1 Pair Of Bluetooth Headphones 1*Data Cable 1*English Instruction Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.