Havit I3S Invisible TWS bluetooth In-ear Earphone Stereo IPX5 Waterproof Handsfree With Charging Box

Feartures: 1.DSP noise reduction technology: improve the recognition level of voice, and can easily communicate even in noisy environment. Make the call clearer and more real. 2.Long working duration: With 2200mAh portable charging box which can power your earphone for 4-5 times.The headphones can be continuously listened to music for about 3-4 hours when the headphones are fully charged. 3.Mini stealth earphone, lightweight, and the ergonomic design brings you comfortable and cozy wearing experience. 4.The new upgraded chip is widely compatible with bluetooth-enabled mobile phones, computers and tablet devices. Specifications: General Specification Brand Havit Model I3S Color Black Wearing Type In-ear Material ABS Net Weight (g) 3.3g Dimensions (cm/ inch) 13*24mm Technical Parameters Microphone Yes Wired Control Not support bluetooth Version 4.1 Transmission Distance 10m Receive Sensitivity 85dB Impedance 16 Frequency Response 20-20KHz Battery Capacity Earphone: 60mAh, 3.7V Charging Case: 2200mAh, 3.7V Charging Time (h) 1-2h Taking Time 8-10h Working Time (h) 3-4h Standby Time(h) 120h Package Included: 1*Havit I3S Earphone With Charging Box 1*Charging Cable 1*Manual