Bluetooth-Compatible Glasses with Speaker: Dynamic driver and unique sound cavity design for clear audio In-ear design allows ambient awareness—stay aware of your surroundings while enjoying music Open-ear solution enables music playback, hands-free calls, and hearing environmental sounds simultaneously Built-in noise-cancelling microphones support clear call quality Bluetooth 5.0 technology with up to 33 feet (10 meters) transmission range Ideal for cycling, running, driving, fishing, basketball, shopping, and other outdoor activities Charging time: 2 hours Battery life: Up to 6 hours standby; 3–4 hours continuous music playback (varies by volume and content); 4–6 hours talk time IPX7 waterproof rating—resists sweat and rain Speaker type: Dynamic speaker Microphone sensitivity: –40 dB ± 3 dB Bluetooth profiles: A2DP, AVRCP, HSP, HFP Battery: Rechargeable Li-ion, 75 mAh Continuous playback: 3–6 hours at normal volume Standby time: 10 days Waterproof rating: IPX7 Bluetooth version: 5.0 Operating temperature: –10°C to +50°C Humidity range: 0–90% Color: Black + transparent Lens type: E31-C (Blue Light Filtering) Frame material: PC + CTA + TR90 + nylon Package includes: 1 × Bluetooth glasses 1 × USB charging cable 1 × cleaning cloth