DOSS DS-1688 Water Proof Bluetooth Speaker Music Stick Portable Bluetooth 4.0 Music Box

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Light in Weight, Portable to Carry With the weight of only 200 grams, you will have no trouble carrying it with you by hooking it on your backpack.
Stereo Dual Loudspeaker Though the body size is small, this Bluetooth speaker has not one, but two loudspeaker units built inside its body, providing you with stereo sound.
Bluetooth 4.0 Technology Compatible with most smart devices, the Bluetooth 4.0 can transfer the music for a better quality and high speed.
FM Radio Broadcast Thanks to the built-in high sensitive radio module, you can listen to the broadcast program when it is not connected to any Bluetooth devices.
Long Time Playing The powerful battery built-in the Bluetooth speaker can provide you with long playing time up to 20 hours, meets your daily needs.
Multiple Proof Design for Outdoor Water proof, dust proof and shock proof, all the proof design make the Bluetooth box durable even in bad outdoor conditions.
Specification
Rated Power 1.5W x 2
Loudspeaker Size 1.25" x 2
Frequency Respond 85Hz-15kHz
Bluetooth Version Bluetooth 4.0
Distortion Factor THD≤0.4%
SNR S/N≥50dB
Battery 3.7V, 1500mAh