Product Name: X21s Keychain Bluetooth 5.0 Wireless LED Power Display Tws Earbuds Model NO.: X21S Distance version: Class B Specifications: A2DP Color: Multi Colors Characteristics: Support Music Function: Bluetooth, Multimedia, USB Soundtrack: Dual Track Bluetooth Version: V5.0 Usage: Mobile Phone, Call Center, MP3 & MP4, Computer, Game Player, Aviation, DJ, Sport Style: In-ear Product Name: Amazon Hot X21s Mini Tws Earbuds Support Memory Card: No Battery: 50mAh Impedance: 32 Ohm +/-15% Active Noise-Cancellation: Yes Item Name: in Ear True Wireless Earbuds Frequency Response Range: 20-20000Hz Talking Time: about 2-3 Hours Charging Time: 1 Hour Charge Case Battery: 400mAh Trademark: Neutral (Support OEM/ODM) Transport Package: Color Retail Box Specification: ABS Origin: China HS Code: 8518301000 Product Description X21S Keychain Bluetooth 5.0 Wireless Led Power Display Tws EarbudsModelX21sSingle Weight3.5gColourBlue,whiteBluetooth Version5.0Voice BoostSupportsupporting AgreementHFP HSP A2DP AVRCPOperating Range10mBattery Capacity50mAhcharging Box Battery Capacity400mAhStandby Durationabout 20-30daysCharging Timeabout 1 hoursWorking Timeabout 5-6hoursMain Features1-LED power display, more intuitive to know the battery life.2-bluetooth 5.0, more stable and faster connection.3- Waterproof, no fear of rain and sweat.4-Touch operation, get rid of discomfortable of tranditional button.5-Built-in battery, can provide emergency power for your mobile phone.Company InformationShenzhen Runton Technology Co., Ltd. is a manufacturer of wireless speaker/headset, solar power bank with well-equipped testing facilities and strong technical force.With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used all over the world. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!Product ShowProduct Specification:Model: X21SBluetooth Version: Bluetooth V5.0+BR+EDR+BLEBluetooth Protocol: a2dpavctpavdtpavrcphfpsppsmpFrequency Range: 2402MHz-2480MHzModulation System: GFSK /DQPSK;Max Power output: +4dBmFosc: 24MHZCPU Frequency: 96MHZPower Supply: DC 2.2V-5.5VSNR: ≥92dBEffective Distance: no barrier 10MFrequency Response: 20HZ-20KHZSensitivity: 98dBNominal Impedance: 32QTransmission Power: Class 2Battery Capacity: 50 mAhPower Supply: 5V /500mACharging Time: about 1 hourService Time: making telephone call 8 hours, playing music 5-8hoursStandby Time: 20-30 daysColor:black , whiteSize:100*80*50mmWhat's in the Box :1 x Pair of Wireless Headsets1 x Battery Compartment Case1 x USB Cable1 x Key buckle1 x Instruction ManualCertificationsShipping Detail1-Thegoodswillbeshippedwithin3workingdaysafteraclearedpayment.2-WesendgoodsviaDHL/FeDex/UPS/TNT/Postalparcel,alsocansendtoyourforwarderifyouhave.3-Duetotheimportduties,taxesarenotincludedinthegoodspriceandshippingcharges,theyshouldbebornebybuyersandbuyersareresponsibleforanydestinationcustomsproblem.4-Pleaseconsultyourcountry'scustomsofficetoseeifanyadditionalcostsyouneedtobearbeforebidding/buying.5-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.3- Your satisfaction to our products is what we have been hard working and pursuing, please contact us before return, the shipping and handling charge is not refundable and customers should be responsible for all the returning charges, all returned items must be in good condition with original packing. Men made defects are not guarantee, such as broken, scratched etc.Please read the above descriptions carefully before purchasing.We sincerely thank you for your shopping on our store and hope you all a nice online purchasing experience!Welcome again:)Contact Detail (QR Code)