synco Xtalk X1 Wireless Headphone

【PORTABILITY & DURABILITY ON THE GO】Made of lightweight ABS materials and smooth leather, the headphones weigh only 188g (6oz) with the included battery, ensuring comfort during prolonged use. The upgraded over-ear leather pad is designed to fit your ear, providing extra stability and comfort, making it ideal for harsh work environments. Specifications: Wireless technology: 2.4G digital Transmission mode: Full Duplex Operating range: 350 m (LOS) Frequency band: 2.4 G Latency: about 50ms Approximate RF Sensitivity: <-90dBm Radio output frequency: 20dBm Power Supply: USB-C DC 5V Battery capacity: 1050mAh Working time: 20 hours. Charging time: about 2.5 hours Frequency Response: 150Hz ~ 7KHz Signal-to-noise ratio: >65dB Distortion: <1% Microphone Type: Condenser Microphone Maximum input sound pressure level: >115dBSPL Output sound pressure level: Typical 98+3dBSPL (at 94dBSPL 1KHz) 3.5mm input: available for monitoring Temperature range: 0°C -45°C (working state) -20°C -60°C (storage conditions) Weight: about 188g (including battery) Packing list: 1 x Wireless Headset with Internal Battery. 1 x Microphone Windshield. 1 x foam cushion. 1 x charging cable