Panasonic RZ-B310W. Product type: Headset. Connectivity technology: True Wireless Stereo (TWS), Bluetooth. Recommended usage: Calls/Music. Headphone frequency: 20 - 20000 Hz. Wireless range: 10 m. Product colour: Black

Ports & interfaces

• Connectivity technology: True Wireless Stereo (TWS)
• Bluetooth: Y
• Bluetooth profiles: A2DP, AAC, AVRCP, HFP, SBC
• Bluetooth version: 5.3
• Frequency band: 2.402 - 2.48 GHz
• Wireless range: 10 m

Weight & dimensions

• Width: 22 mm
• Depth: 25 mm
• Height: 33 mm
• Left earpiece weight: 4.7 g
• Right earpiece weight: 4.7 g
• Charging case dimensions (W x D x H): 61 x 29 x 37 mm
• Charging case weight: 40 g

Microphone

• Microphone type: Built-in

Headphones

• Ear coupling: Intraaural
• Intraaural headphones type: Earbuds
• Headphone frequency: 20 - 20000 Hz
• Noise canceling: Y

Packaging content

• Charging case: Y
• Charging case connector type: USB Type-C
• Cables included: USB Type-A to USB Type-C
• Quantity: 1

Battery

• Battery operated: Y
• Battery type: Built-in battery
• Battery technology: Lithium Polymer (LiPo)
• Input voltage (charging case): 5 V
• Right earpiece battery capacity: 40 mAh
• Left earpiece battery capacity: 40 mAh
• Battery recharge time (charging case): 2.5 h
• Continuous audio playback time (charging case/ANC on): 16 h
• Continuous audio playback time (charging case/ANC off): 20 h
• Continuous audio playback time (ANC on): 5 h
• Continuous audio playback time (ANC off): 6 h
• Battery recharge time: 2.5 h
• Battery voltage: 3.7 V
• Fast charging: Y
• Fast charging time: 15 min
• Charging source: USB

Performance

• Product type: Headset
• Wearing style: In-ear
• Recommended usage: Calls/Music
• Product colour: Black
• Control type: Touch