"★ Premium Bluetooth & USB DAC/AMPQualcomm QCC5124 (Quad-Core)Bluetooth 5.0aptX Adaptive, LDAC, AAC, aptX-HD and SBCVoice Call (Qualcomm CVC & MEMS Microphone)High-Performance LDS Antenna6~20H Battery Time ★ 96KHz/24bit USB DACSeamless Audio Switching between Bluetooth and USBDirect connection to AndroidC-to-C Cable Included in the packageAutomatic Battery Care when working as a USB DAC ★ High-Performance ES9218 DAC/AMP x 2Max. 2VRMS to 3.5mm UNBAL (-118dB SNR)Max. 4VRMS to 2.5mm BAL (-122dB SNR)No Hiss or White Noise8 Different DAC Low Pass FilterUltra High-Precision MEMS Audio Clock ★ Embedded Pro-Grade 10-Band EqualizerPEQ & GEQ for all input type (including LDAC and USB)64-bit double-precision ★ Companion Mobile AppFirmware Update (OTA)LDAC Bitrate ReportCodec SelectionUSB DAC Sample Rate SelectionBattery Log GraphVolume Channel Trim & LimitLED Dimming Control★ One Year WarrantyWarranty Extension Program up to +8 month Dual ES9219 HiFi DAC 2.5mm Balanced (4V RMS) 3.5mm Unbalanced (2V RMS) Qualcomm QCC5124 Bluetooth Chipset HFP / HSP / A2DP / AVRCP LDAC / aptX Adaptive / aptX HD / AAC Bluetooth and USB DAC 96KHz/24bit with embedded double-precision equalizer 500mA Li-Po Battery / 6~20 hours streaming Plastic Body (Black) with anti-scratch UV Coating / Aluminium Clip (Dark Gray) / 52.8(H) x 26.7(W) x 15.6(D) mm (including Clip) / 25g Date First Available: May 6, 2020 Compatible Devices: Phones Number of Bands: 10 Unit Count: 1 Count Power Source: Battery Powered UPC: 860003628812 ASIN: B088F7C976 Batteries: 1 Lithium Polymer batteries required. (included) Product Dimensions: 1.05"D x 2.08"W x 0.61"H Item Height: 1.54 centimeters Connector Type: USB Manufacturer: Qudelix,Inc. Enclosure Material: Plastic Item Type Name: DAC AMP Amplifier Type: Solid State Output Wattage: 5 Watts Warranty Description: 1 year manufacturer Model Name: Qudelix-5K Color: Black Output Channel Quantity: 4 Item model number: Qudelix-5K Material: Plastic Brand: QUDELIX Speaker Size: 2 Inches Item Dimensions D x W x H: 1.05"D x 2.08"W x 0.61"H Item Weight: 26 Grams"