Name of the series: JHead Model of the Series: JR-JH1 Name: Wireless Hybrid ANC Headphones Version 5.4 of BT SBC and AAC audio decoding for BT 800mAh is the battery's capacity. Specifications for the speaker: 40mm (32Ω±15% at 1kHz) Sensitivity of speaker: 110±3dB (at 1kHz, 0.126V) Range of frequency response: 20 Hz–20 kHz Frequency of operation: 2402-2480MHz Maximum power output: 10dBm EIRP BT range: 12 meters Time on standby: 150 hours 120 hours of playback (ANC off) at 70% volume Playback duration (ANC enabled): 70 hours at 70% volume 60 hours of talk time at 70% volume Battery life: 1.5–2 hours AUX Supported: / Type-C charging port Input power: 5V⋓1A Material: PP, PU, ABS+PC 234g is the net weight. Measurements: 195.8*182.6*80 mm