[Truly Wireless] Mini bluetooth Earphone TWS Stereo Bass Headset Handsfree With Charging Case

Specifications: Model: HV-316T Color: Black bluetooth version: V4.1 Working Voltage: 3.2V - 4.2V Sensitivity: -42dB2dB Frequency Range: 2.4-2.48Ghz Talk/Listening time: Up to 120 minutes listen or talk Standby time: Up to 8 days Auto Power-Off technology: Power off when no connectivity for 5 minutes. Operating distance(range): Up to 10m/33 feet Headphones weight: 5 grams per earbud Noise reduction: Full duplex echo cancellation; Real time noise reduction; Voice clarity Moisture protection: Design for sweat and moisture protection Charge connector: Micro USB charging Battery type: Rechargeable, non-replaceable lithium-ion polymer bluetooth 4.1 + EDR: Advanced Audio Distribution Profile (A2DP) Audio Video Remote Control Profile (AVRCP) Hands-free Profile (HFP) and Headset Profile (HSP) Package included: 2 x LarKoo bluetooth Stereo Earpbuds 4 x Earcaps 1 x Charging Station 1 x Micro USB charge cable 1 x User Manual Note: When charging, red light is on; When finished charging, light off; When headset is put in the charging case, hedset will be powerd off automatically; When several minutes after the low battery alert, headset will be powerd off. More instructions in the User Manual.