Advanced Bluetooth 5.4 Technology for stable and quick connectivityHigh-Definition Lossless Decoder Chip for crystal clear soundMultiple interfaces to connect with audio devicesCompact and design, ideal for both home and professional usePower input: 5VBluetooth chip: QCC3084 (supports , AAC, , - LL, - HD, - adaptive, LDAC)Bluetooth version: 5.4Bluetooth sampling rate: Up to 24bit 96k supportedDA chip: ES9039Q2M*2Operational amplifier: OPA1642*3Output mode: lotus connector, 3.5mm headphone jack outputOutput voltage: 2VFrequency response: 20Hz - 20kHzSignal - to - noise ratio: - 110dB(The product appearance and printed words depending on the batch, but this does not affect use)Color:SilverMaterial:Aluminum AlloyPackage Contents:1 * Audio AmplifierOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.