TCL Neckband (in-ear) Bluetooth Headset, Frequency of response: 10-23K, Sensitivity: 104 dB, Driver Size: 8.6mm, Impedence: 28 Ohm, Acoustic system: closed, Max power input: 25mW, Connectivity type: Bluetooth only (BT 5.0), Color Phantom Black
TCL Neckband (in-ear) Bluetooth Headset, Frequency of response: 10-23K, Sensitivity: 104 dB, Driver Size: 8.6mm, Impedence: 28 Ohm, Acoustic system: closed, Max power input: 25mW, Connectivity type: Bluetooth only (BT 5.0), Color Phantom Black
TCL Neckband (in-ear) Bluetooth Headset, Frequency of response: 10-23K, Sensitivity: 104 dB, Driver Size: 8.6mm, Impedence: 28 Ohm, Acoustic system: closed, Max power input: 25mW, Connectivity type: Bluetooth only (BT 5.0), Color Phantom Black