Weight and dimensions Product weight: 290 g Product width: 68 mm Product depth: 135 mm Product height: 170 mm Efficiency Product color: Gray Wearing style: Around the neck Control Type: Buttons Product type: Headphones Security features: Waterproof Volume control: Button Control type: On-ear Operating buttons Multi-button Volume + Volume - Application: Sports IP protection class: IP55 Headset type: Stereo Clear sound: Yes Packaging data Package depth: 136 mm Packaging type: Hanging box Package width: 70 mm Package height: 175 mm Weight with packaging: 330 g Package contents Cables: USB Type-A to USB Type-C Quick Start Guide: Yes Quantity: 1 Cover: Yes Ports and interfaces Bluetooth: Yes Connection method: Wireless Wireless router range: 10 m Bluetooth profiles HFP HSP A2DP SBC AVRCP Bluetooth version: 5.1 Battery Standby time: 240 h Supported battery type: Built-in Charging source: USB Battery type: Lithium Polymer (LiPo) Charging time: 2 hours Music playback time: 6 h Battery powered: Yes Fast charging: Yes Logistics data Product code: 8518300090 Microphone Microphone type: Built-in microphone Microphone sensitivity: -40 dB Noise-canceling microphone: Yes Safety warning Warnings Keep away from children. Check the condition of the batteries regularly to prevent leakage. Do not use near sources of heat or fire. Headphones Headphone Structure: Bone Conduction Acoustic system: Open Frequency response: 20 - 20000 Hz Headphone sensitivity: 96 dB