Specification AudioInput : XLR BatteriesIncluded : 1 BatteriesRequired : 1 Brand : Retekess BulletPoint1 : Large-capacity battery; our guide headset long range has built-in 1500mAh rechargeable lithium battery; transmitter can be used for 12 hours; receivers up to 18 hours; reduce the charging time BulletPoint2 : Easy to use; adjusts channel to the same one with only one key instead of complex operation; after use, you can turn off all the receivers at once to save time; no need to turn them off tour group headsets one by one BulletPoint3 : Retekess TT122 transmitter supports connecting any number of receivers ; allowing you to add or subtract receivers as group size changes; the TT122 wireless tour guide audio system long range communication can accommodate all participants BulletPoint4 : Ear-hook earphone; 3.5mm universal jack; no need to plug into your ears; cleaner and more hygienic; comfortable even worn for a long time; you can also use your own earphones BulletPoint5 : Lifetime Customer Support; We provide 3 year warranty and 30 days no reason to return. If any, please contact us on Amazon, we will reply you within 12 hours BulletPoint6 : Long working distance; The Retekess TT122 tour audio guide system can achieve 150m of communication in open areas; widely used in various environments such as schools, tourism, churches, etc.; uses 2.4G stable signal transmission, clear sound quality BulletPoint7 : AUX function; only one cable (not included) is needed to connect external devices; transmit external audio source through the transmitter; AUX and MIC are the same jack; cannot add background music when you are talking Color : Black CompatibleDevices : Headset ConnectivityTechnology : XLR ConnectorType : XLR ExternallyAssignedProductIdentifier : 4901780345304 HardwarePlatform : Karaoke Machine Hazmat1 : LITHIUM ION BATTERIES CONTAINED IN EQUIPMENT Hazmat10 : CN_SmallLithiumIonBatteryInEquipment Hazmat11 : DE_SmallLithiumIonBatteryInEquipment Hazmat12 : EG_SmallLithiumIonBatteryInEquipment Hazmat13 : ES_SmallLithiumIonBatteryInEquipment Hazmat14 : FR_SmallLithiumIonBatteryInEquipment Hazmat15 : GB_SmallLithiumIonBatteryInEquipment Hazmat16 : IN_SmallLithiumIonBatteryInEquipment Hazmat17 : IT_SmallLithiumIonBatteryInEquipment Hazmat18 : JP_SmallLithiumIonBatteryInEquipment Hazmat19 : MX_SmallLithiumIonBatteryInEquipment Hazmat2 : UN3481 Hazmat20 : NL_SmallLithiumIonBatteryInEquipment Hazmat21 : PL_SmallLithiumIonBatteryInEquipment Hazmat22 : SA_SmallLithiumIonBatteryInEquipment Hazmat23 : SE_SmallLithiumIonBatteryInEquipment Hazmat24 : SG_SmallLithiumIonBatteryInEquipment Hazmat25 : TR_SmallLithiumIonBatteryInEquipment Hazmat26 : US_SmallLithiumIonBatteryInEquipment Hazmat27 : ZA_SmallLithiumIonBatteryInEquipment Hazmat3 : II Hazmat4 : 9 Hazmat5 : AE_SmallLithiumIonBatteryInEquipment Hazmat6 : AU_SmallLithiumIonBatteryInEquipment Hazmat7 : BE_SmallLithiumIonBatteryInEquipment Hazmat8 : BR_SmallLithiumIonBatteryInEquipment Hazmat9 : CA_SmallLithiumIonBatteryInEquipment IncludedComponents : 48 Carry Bag, 48 USB Cable ItemName : Retekess TT122 Wireless Tour Group Headsets, Audio Tour Guide Device, 492ft/150m, Crystal-Clear Reception, Kits for Tourism Activities (2 Transmitters 48 Receivers) ItemPackageDimensions_Height : 260 millimeters ItemPackageDimensions_Length : 400 millimeters ItemPackageDimensions_Width : 370 millimeters ItemPackageQuantity : 1 ItemTypeKeyword : wireless-microphone-transmitters-and-receivers Manufacturer : Retekess Material : Ethylene Vinyl Acetate MicrophoneFormFactor : Microphone System ModelName : EW-DP ENG SET ModelNumber : F9488CX2-F9488DX48-F9468F MountingType : Portable NumberOfChannels : 36 NumberOfItems : 50 NumberOfLithiumIonCells : 21 PartNumber : F9488CX2-F9488DX48-F9468F PolarPattern : Omnidirectional PowerSourceType : Battery Powered ProductDescription : Features of Receiver: Channel: 36 channels. Power supply: Built-in 1500mAh lithium battery. Working time: About 18 hours. Size: 2.1x 0.75 x 2.62in. Weight: 70g. Features of Transmitter: Channel: 36 channels. Power supply: Built-in 1500mAh lithium battery. Working time: About 12 hours. Working distance: 492ft (open air). Size: 2.1x 0.75 x 2.62in. Weight: 70g. Features of Storage Package: 1.Store 48pcs TT105/TT122 and accessories. 2.Material: Nylon cloth wrapped with EVA. Package Includes: 1 x Retekess TT016 storage package. 2 x Retekess TT122 transmitter. 2 x Microphone. 48 xRetekess TT122 receiver. 48 x Single earphone. 50 x USB charging cable. 50 x Lanyard. 2 x English manual. ProductSiteLaunchDate : 2022-11-12T03:50:46.561Z Size : Large Style : Xvive U3 Dynamic Microphone Wireless System with Case SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TalkRangeMaximum : 492 feet TargetAudienceKeyword : Unisex Adult UnspscCode : 52161554 WarrantyDescription : We provide 2 year warranty and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours WaterResistanceLevel : not_water_resistant