Product Name: HD-S16 3D Stereo Headset Tws True Wireless Stereo Earphones Bluetooth 5.0 Headset Model NO.: HD-S16 Distance version: Class A Specifications: HSP Color: White Characteristics: Power Display Function: Bluetooth, Multimedia, USB Soundtrack: Dual Track Bluetooth Version: 5.0 Usage: Mobile Phone, Computer, Game Player Style: In-ear Name: Wireless 3D Stereo S16 Headphones Longest Distance: 20m Sensitivity: 107 dB Spl+/ -3dB Colors: Red and Black Bluetoothversion: 5.0+EDR Headphone Working Time: 4-5hours Headphone Standby Time: 50hours Charging Time: about 2 Hours Support Agreement: Hfp/Hsp/A2dp/Avrcp Headphone Battery Capacity: 3.7V 50mAh Trademark: ODM Transport Package: Box Specification: Plastic Origin: China HS Code: 8518300000 Product Description HD-S16 TWS True Wireless Stereo Earphones Bluetooth 5.0 Headset In-ear 3D Stereo Headset with Pop-up Charging CaseColor: Black, WhiteBluetooth version: V 5.0Speaker: F142 (big speaker)Working time: about 3-4 hoursCharging time: 1 hourStandby time: 40 hoursBattery capacity: charging compartment 400mAh, headset 35mAhEffective distance: about 10 metersFunction: smart touch, smart pop-up, 3D stereo, binaural dual-pass, Siri functionProduct size: 53*46*26m/2.09*1.81*1.02inProduct ShowShipping Detail1-Thegoodswillbeshippedwithin3workingdaysafteraclearedpayment.2-WesendgoodsviaDHL/FeDex/UPS/TNT/Postalparcel,alsocansendtoyourforwarderifyouhave.3-importtaxisoutofcontrol,ifyouhaveaspecialrequestfromustodeclarelowervaluetominimizetheimporttaxyouneedtopay,pleaseinformusthedetailsuponyourpayment,wewilldoasperyourinstruction.Warranty & Return1- The warranty is ONE YEAR from the date of payment. All merchandises are in good quality and condition under strict examination before shipping.2- If it is not man-made damage, we can repair it for free. The returning shipping fee should be borne by customer.