Pyramid MDC7 6.5-Inch Marine 120 Watts Dual Cone Waterproof Stereo Speakers:

6.5 Full Range Dual Cone Speakers
Completely Waterproof
For Marine or Car Door Use
Polypropelyne Cone w/Cloth
Built-In Molded Grill

Bluetooth Wireless 4.0 Music Receiver 3.5mm Adapter Handsfree Car AUX Speaker:

Latest Bluetooth 4.0 (Broadcom) technology.
Supports pairing two smarts devices at once.
MIC mute function.
Supports all compatible Bluetooth enabled device.
Built-in microphone.
Ec ho and noise canceling function for clear conversations.
Fast NFC pairing with NFC enabled smartphones.
Music player controls: VOL+, VOL-, FWD, REV.
You can achieve all music operations and phone operations by 3 control button.

Specifications:

Bluetooth Version: 4.0 （Broadcom）
Frequency response: 20-20 000 hz
Bluetooth frequency: 2402 MHZ ~ 2480 MHZ
Bluetooth profiles supported: HFP, HSP, A2DP and AVRCP
Bluetooth rang: up to 30 feet
The distortion degree :< 0.5%
Charging Input: DC 12V-24V
Charging Output: DC 5V/2.1A (MAX)
Product dimension: 1.7*0.4inch
Weight (product+package):100g
Package dimension: 17.2*10*3.30CM, 6.8*4*1.3 Inch
3.5MM AUX Cable: 150CM, 59inch