Bluetooth Headphones 5.1 TWS BU Series

Description: In-ear headphones using Bluetooth 5.1 technology. The transmission is twice as fast as the BT 5.0 and the distance has been increased four times. It easily copes with interference on the 2.4GHz network. It is a fast and stable connection with low energy consumption. The battery allows for almost 30 hours of continuous music playing if we regularly charge them using the case. Light design and appropriate shape ensure comfortable use, combined with the weight of only about 3g, you hardly feel any pressure. | Application: Call center | Application: Music | Application: Internet | Design: In-ear | Technology: Hands-free | Technology: Noise reduction | Wireless communication: Bluetooth | Connectors: 1 x USB (Type C) | Sound: Stereo | Audio controls: Volume control | Audio controls: Answer/Mute calls | Bluetooth features: HFP (Hands-Free Profile) | Bluetooth features: AVRCP (Remote control) | Bluetooth features: A2DP (Stereo transmission) | Pass band (min): 20 | Pass band (max): 20000 | Sensitivity: 115 | Microphone: Yes | Range: 12 | Color: Violet | Accessories included: Pair of earphones Charging case USB Type-C charging cable User manuals | Other features: Material: ABS + PC Bluetooth version: 5.1 Connection range: up to 12 metres Speaker diameter: 13 mm Speaker resistance: 32h Speaker sensitivity: 1153dB Speaker frequency: 20Hz~20KHz Signal-to-noise ratio >70 Earpiece weight approximately 3g Battery capacity: 30 mAh Playing time: approx. 5 hours Talking time: approx. 4 hours Charging time: about 1 hour Case weight: approximately 35.5 g Case battery capacity: 300 mAh Case charging time: approximately 1 hour Case charging input: 5V Standby time: approximately 25 hours Case size: 56x50x26.7mm Compatibility For Apple/Android devices with Bluetooth functionality