USAMS Bluetooth 5.1 Earbuds Pink

Audio Specifications

• Driver size: 13 mm dynamic drivers
• Frequency response: 20 Hz – 20 kHz
• Impedance: 32 Ω
• Sensitivity: 95 ± 3 dB (some listings: 108 ± 3 dB)
• Signal-to-noise ratio: > 70 dB
• Active Noise Cancellation (ANC): Yes (some listings mention ANC / noise reduction)
• Dual microphone: Yes (for calls and noise reduction)

Connectivity

• Bluetooth version: 5.1
• Bluetooth profiles: A2DP, AVRCP, HFP (stereo audio, remote control, hands-free)
• Wireless range: Up to 10 m (open space, no obstacles)
• Pairing: Auto-pairing after first connection
• Compatibility: iOS, Android, and other Bluetooth-enabled devices

Battery & Charging

• Earbud battery: 35 mAh per earbud
• Charging case battery: 300 mAh
• Battery life (single charge): Up to 6 hours (music playback)
• Battery life (with case): Up to 25–30 hours total (varies by usage)
• Standby time: Up to 25 hours
• Charging time (earbuds): ~2.5 hours
• Charging time (case): ~1.5 hours
• Charging port: USB Type‑C (on case)

Physical Specifications

• Earbud weight: ~3 g per earbud
• Charging case weight: ~25–30 g
• Total weight (earbuds + case): ~135–150 g (with packaging)
• Charging case dimensions: 51 × 49.5 × 23.5 mm
• Material: ABS + PC plastic
• Design: In-ear, ergonomic, lightweight

Controls & Features

• Touch controls: Yes (play/pause, volume, track skip, calls, voice assistant)
• Voice assistant: Yes (Siri / Google Assistant compatible)
• Waterproof rating: IPX4 or IPX5 (splash-proof, sweat-proof)
• Auto power on/off: Yes
• LED indicator: Yes (on case, shows charging status)