Coolbox CoolMetal Bluetooth Wireless Headphones

Specifications:

Performance:
- Product type: Headphones
- Wearing style: Head-band
- Recommended usage: Calls & Music
- Volume control: Digital
- Detachable cable: Yes

Ports & interfaces:
- Connectivity technology: Wired & Wireless
- 3.5 mm connector: Yes
- 6.35 mm connector: No
- USB connectivity: No
- USB connector: Micro USB
- Bluetooth: Yes
- Bluetooth version: 4.2
- RF connectivity: No
- Wireless range: 10 m

Headphones:
- Ear coupling: Supraaural
- Headphone frequency: 20 - 2000 Hz
- Impedance: 4 Ω
- Headphone sensitivity: 103 dB

Headphones:
- Driver unit: 4 cm

Microphone:
- Microphone type: Built-in

Battery:
- Battery type: Built-in battery
- Battery life (max): 7 h
- Battery capacity: 250 mAh
- Rechargeable battery: Yes
- Battery recharge time: 2 h
- Battery voltage: 3.7 V
- Charging source: USB

Weight & dimensions:
- Width: 170 mm
- Depth: 85 mm
- Height: 175 mm

Packaging content:
- Cables included: Audio (3.5mm), USB
- Quantity: 1

Other features:
- 2.5 mm connector: No
- Manual: Yes
- On/off switch: Yes

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