Yu Yi Ling B9-TWS Wireless Earbud

Communication: Wireless Volume Control: Yes Style: In-Ear Sensitivity: 123dBdB Wireless Type: Bluetooth Is wireless: Yes Line Length: Nonem Support APP: No Function: Common Headphone Function: For Mobile Phone Function: HiFi Headphone Function: Sport Connectors: None Model Number: B9 Codecs: Apt-X Support Memory Card: No Resistance: 32ΩΩ Waterproof: Yes With Microphone: Yes Color: Black Name: B9 TWS Bluetooth Earphones Charger Battery: 300mAh Earphones Battery: 40mAh*2 Play time: 3h Transmission distance: 10m Charger Time: 1h Function: Common Headphone Function1: HiFi Headphone Bluetooth: 5.0 Waterproof: IPX5 Daily Life Waterproof Product Name: B9-TWS Bluetooth version: second generation Bluetooth 5.0 Music / call duration: 3 hours Charging box can charge the headset:4-5 times Charging box capacity: 300mAh polymer lithium battery Headphone single ear capacity: 60mAh polymer lithium battery Sensitivity: 120dB Impedance: 32Ω Bluetooth transmission distance: 10 meters Charging voltage: 3.7V Bluetooth decoder: ACC B9-TWS Bluetooth Headset*2 (left and right ears) Original full metal case charging box*1 Natural silicone earmuffs * 3 pairs (large / medium / small) Instruction manual*1 USB charging cable*1