<ul> <li>The lightweight wireless neckloop speaker fits smoothly around your neck and rests on your shoulders, providing a comfortable and secure fit for long periods of use or while relaxing</li> <li>Along with the latest Bluetooth 5.0 which connects to smartphones, you can also use the TF card (max 32g) slot to listen to your favorite music</li> <li>Built-in 3W*2 Bluetooth wireless speaker system, front facing upwards speakers surround you with deep and rich sound, creating a truly unique and immersive sound experience</li> <li>You can enjoy music when you go out for sports such as walking, cycling, mountain climbing, etc.</li> </ul> <p><strong>Specifications:</strong></p> <ul> <li>Bluetooth compatible version: V5.0 + EDR&nbsp;</li> <li>Bluetooth compatible protocol: RF5.0 BB5.0 LMP5.0 AVCTP1.4 GAVDP1.3 HFPV1.7&nbsp; A2DPV1.3, AVRCPV1.6&nbsp; SSP V1.2 etc.</li> <li>Material: ABS plastic + cloth net + TPU (handle)&nbsp;</li> <li>Output power: max. 2*3W&nbsp;</li> <li>Response frequency: 2.4GHz-2.480GHz&nbsp;</li> <li>Speaker unit: Double speaker, 3W*2, platinum inner magnet impedance &Phi;33/4&Omega;</li> <li>Signal-to-noise ratio: &ge;80dB&nbsp;</li> <li>Distortion: &le;3 %&nbsp;</li> <li>Sensitivity: -88DBM&plusmn;2dBm&nbsp;</li> <li>Transmission power: support class 1/class 2/class 3 maximum adjustable 6dBm&nbsp;</li> <li>Input voltage: DC 5V&nbsp;</li> <li>Audio Type: Dual Channel</li> <li>Charging current: In DC 5v 500mA &plusmn; 10mA when charging, the speaker's red light is on and the red light is off</li> <li>Working current: (3.7V 1kHz 0dBm battery) Average 600mA&nbsp;</li> <li>Shutdown current: &le; 50uA&nbsp;</li> <li>Temperature range: -25℃ to +65℃&nbsp;</li> <li>Speaker battery: 500mAh, battery model 802540 polymer plus protection board (Micro 5 Pin charging interface)&nbsp;</li> <li>Transmission distance: &ge; 10 meters (no barrier)&nbsp;</li> <li>Talk time is about 5 hours and standby time is about 7200 hours</li> <li>Bluetooth support playback 60~70% volume listening time is about 12~13 hours, 100% volume listening time is about 5 hours</li> <li>TF card plays 60~70% volume, listening time about 10~12hours. 100% volume, listening time about 4 hours</li> </ul>