Casti fara fir RAZER HAMMERHEAD TRUE WIRELESS EARBUDS TECH SPECS Bluetooth wireless range: Up to 10m / 30 ft Battery life: Earbuds 4 hours and 12 hours additional with charging case* Charge time: Up to 1.5 hours Drivers: 13 mm * May vary dependent on usage Headphones Frequency response: 20 Hz - 20kHz Impedance: 32 ± 15% Ω Sensitivity: 91 ± 3 dB @ 1 kHz Max input power: 8mW Drivers: 13 mm Approximate weight: 45.0 g Microphone Frequency response: 300 Hz – 5 kHz Signal-to-noise ratio: ≥ 55 dB Sensitivity (@1 kHz): -42 ± 3 dB Pickup pattern: Omnidirectional Touch controls Music Controls: Play, pause, skip, previous Call Controls: Answer, reject, switch, end General: Pair, power, activate smartphone virtual assistant Battery Battery type: 275mAh rechargeable Li-Po battery Rated Capacity Battery life: Earbuds 4 hours and 12 hours additional with charging case* Charge time: Up to 1.5 hours * May vary dependent on usage Range Bluetooth wireless range: Up to 10m / 30 ft Compatibility Devices with Bluetooth audio capability Smartphone app available for Android™ 8.0 Oreo and iOS 11 (or higher) Supported codecs: SBC, AAC