Welcome to Selly Studio's Waterproof Bicycle Bluetooth Speaker Multifunctional 5W Portable Wireless Sound Box for MTB Bike with Light Power Bank New ?STABLE, SECURE AND DETACHABLE BIKE PHONE MOUNT?: The patented clamping mechanism ensures maximum mobile phone stability. The mobile phone will stay firmly in place even under intense or extreme cycling. Width adjustable features allow for the attachment of mobiles of 3.5 to 7 inch wide. ?MUSIC OF EXCEPTIONAL CLARITY ON THE GO?: The UPPEL Bike Sound System has a 5W Bluetooth speaker equipped with a soft diaphragm that provides high-quality sound of exceptional clarity. The bike speaker bluetooth supports a variety of music inputs including TF card, U-DISK, AUX in, etc. Easily control the device using multi-functional keys. ?HOURS OF BUILT-IN BATTERY USE?: The UPPEL phone bike holder has a built-in 5000mAh battery. Connect the charging cable with the speaker in the power-ON state and use the USB port to charge your cell phone on the go. Continue to enjoy all functions of the system as your phone charges. With this system, you're always connected. The battery can support 6-7 hrs of continuous light and 12-15 hrs of continuous music. If you're using both lights and music, you can expect 4~5 hrs of continuous use. ?ILLUMINATE THE ROAD AHEAD WITH THE DOUBLE LED LIGHT?: The UPPEL bicycle phone mount has an LED light and flashlight function so you can effectively signal your presence and illuminate the road for up to 50m ahead. Hold the Light Key to turn it ON, or have it flashing, and hold it down again to turn it OFF. To change the light range, rotate the base on the handlebar. ?BICYCLE BELL/HORN FOR SAFETY?: UPPEL's Micro B socket can connect to the external bicycle horn cable to activate the bicycle phone holder's ring bell function. The powerful horn sends potentially life-saving warnings to others on the road. The bell has three ringtones and adjustable ring volume. It fits most mountain, road and casual bikes. This is a vital safety feature. Specifications Input/Output other Sound Mode Standard Mode Category Speakers Use other Sabwoofer cabinet material Metal Woofer/Widerange material other Mid-range material other Tweeter material Metal Acoustic enclosure other Sensivity 83dB Bluetooth Version 5.0 Input Power(W) 25 W Total Harmonic Distortion 3% Active Noise-Cancellation PASSIVE Impedance 2 Ohm Voice Control No Frequency Range 100Hz-20KHz Output Power 5W Display Screen No Waterproof Yes Support APP No Support Memory Card Yes Material plastic Playback Function mp3 Remote Control No Support Apt-x No Intelligent Personal Assistant none Display Screen No Built-in Microphone Yes Audio Crossover Full-Range Number of Loudspeaker Enclosure 1 Power Source Battery Channels 2 (2.0) Feature Phone Function,Wireless Charger for Mobile Phone Battery Yes Communication AUX,bluetooth Speaker Type Portable Cabinet Material plastic Origin Mainland China Certification CE Function 1 (description exceeds maximum possible length)