Expand storage32GB
InvoiceProvide invoice
Whether to support appIs
Applicable peopleGeneral
DisplayNo
BrandWhistle
FunctionInsert card
Frequency response range40Hz-20KHz
Does it have radio function?No
Mode of operationButton
Battery capacity4000
Color(value edition) reco...
Processing methodOem processing
Print logoCan
Item numberConsult customer ser...
Interface typeUSB
Product weight0.7KG
Package listConsult customer ser...
Package typePackage one
Time on the market2023
Shell materialPlastic
TypeAmplifier/set
Sound channel1
Bluetooth protocol5.0
Fastest shipping time1-3 days
Number of speakers1
Whether to exclusively supply goods for cross-border exportIs
After sales serviceStore three guarante...
Main downstream platformsOther
Speaker adjustment methodButton
Power supply modeBuilt-in lithium bat...
Play time8 hours
Support formatTf card
Model521
Play formatMP3
Signal to noise ratio≥75dB
Supply categorySpot goods
Appearance sizeConsult customer ser...
Whether to support dropshippingSupport
Effective distance10m
Main sales areaOther
There are licensable private brandsIs
Connection methodBluetooth connection
OriginHenan
Shipping logistics companyYunda
Box materialABS
Logistics servicesDoor to door deliver...