Frequency Band: 2.4G with intelligent frequency hopping for strong anti-interference. Audio Technology: HyFis codec, AI neural network noise reduction. Performance: Ultra-low latency, low power consumption, lossless high-fidelity, long-distance transmission. Audio Quality: 720-degree panoramic sound, 24K full-duplex stereo, micro-fountain code channel transmission. Power Supply: Equipped with leading phantom power supply technology, supports external ADC, includes phone amplifier/headphone amplifier, and integrated power management. Model: H58 Audio: 192K/24bit, Mono Range: >50m Latency: ≤5ms Audio Signal-to-Noise Ratio: 103dB THD+N: ≤-80dB Dynamic Range: 100dB Frequency Response Range: 20Hz~20KHz Operating Time: ≥8h Charging Time: ≤2.5h Built-in Battery: 3.7V/400mAh (Polymer Lithium Battery) Charging Input: 5V/500mA Color: Black Material: plastic Package Contents: 1*Transmitter+1*Receiver Only 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.