B5 Bluetooth Transmitter Wireless Audio Transmitter Stereo Bluetooth 4.1 Music Stream External Antenna Signal 66" Battery Type: Rechargeable Lithium

66" Battery Type: Rechargeable Lithium Polymer Battery Battery Capacity: 90mAh Charger: USB Charging Clip (Included) Waterproof Rating: IP67 Case Color: Black Band Material: Silicone Band Color: Blue

Recording automatically after the car is powered on

keep cold for 6-12 hours or more

Tempered glass lenses adopt anti-condensation treatment for clear underwater vision

B5 Bluetooth Transmitter Wireless Audio Transmitter Stereo Bluetooth 4.1 Music Stream External Antenna Signal 66" Battery Type: Rechargeable LithiumProduct Features: High quality Sound Effect: Adopts Advanced Bluetooth 4. 0 Module which lets it gets high quality sound effect with A2DP & AVRCP, and its Built AEC echo cancellation and noise cancellation circuit ANC, offering and allows you to enjoy gorgeous and more pure stereo sound without wire restriction or watch TV quietly without disturbing your family members Magical Function: Change traditional DVD, TV, Notebook or PC into a Bluetooth